Horses under scrutiny. [Quartz]( Sponsored by Good morning, Quartz readers! Hereâs what you need to know Israel is closer to a ground operation in Gaza. Five days into the latest conflict, more tanks and troops [arrived at the border](, with heavy shelling and air strikes continuing against Palestinian rocket attacks. The Colonial Pipeline is flowing again. The company reportedly paid $5 million to the DarkSide hackers, but although [fuel supplies]( are on their way, â[this is not like flicking on a light switch](,â US president Joe Biden warned. The US announced new mask guidelines. Fully vaccinated people [no longer need to wear face coverings]( in most indoor and outdoor venues; Biden called it a â[a great day for America](.â Alibaba reported its first quarterly loss since going public. Despite losing 5.5 billion yuan ($853 million) because of a $2.8 billion antitrust fine in China, the companyâs revenue growth [beat analyst estimates](. Indiaâs Covid-19 crisis is breaching its borders. The B.1.617.2 strain of coronavirusâor âIndian variantââis [spreading in the UK](, with officials planning emergency containment measures. Singapore imposed new coronavirus restrictions. [As cases rise]( across southeast Asia, these are [the strictest measures]( since last yearâs lockdownâSingaporeans have largely lived a Covid-free life for months. Sponsor content by MaryRuth's These health supplements are chef-approved. Made with the highest quality ingredients, MaryRuthâs supplements are non-GMO and vegan. Their full range of supplements supports everything from sleep to immunity to digestionâplus, they taste great. [Save 20%]( on your first order of $23.95+ with the code QUARTZ. What to watch for [Medina Spirit during a morning workout at Pimlico Race Course.] USA TODAY Sports/Mitch Stringer One of the worldâs premier horse racing events begins this weekend under a cloud of suspicion and intrigue. Medina Spiritâthe controversial horse that won this yearâs Kentucky Derby but flunked a test for performance-enhancing drugsâwill be [allowed to run at the Preakness Stakes under close supervision](. Bob Baffert, the horseâs legendary trainer, is no stranger to drug scandals. In the past four decades, his horses [have failed 30 drug tests](. In some instances, those tests have been swept under the rug by [racing officials with whom he has personal ties](. Today, however, both Baffert-trained horses racing in the Preakness will be subjected to additional rounds of testing, and will be disqualified if labs find even trace amounts of the drug found in Medina Spiritâs blood at the Kentucky Derby. Charting whoâs benefiting from privacy changes Tech companies are starting to make it harder for advertisers to snoop on what consumers read, watch, and buy online. But thereâs one notable laggard: Googleâs Android operating system. While privacy changes are on their way to Apple devices and all major desktop browsers, there are no plans to bring similar protection to Android devices. That means the privacy benefits will go first to people who can afford iPhones and laptops, and [last to people who rely on more affordable Android devices](. [A scatterplot showing countries' wealth as compared to their reliance on the Android operating system. It shows that Android has more market share the poorer a country is.] Ad industry observers expect that Google will eventually boost privacy on Androids by blocking advertisers from tracking what individual users do on their phones. But the company may be dragging its feet because it doesnât want to disrupt the industry, which provides the lionâs share of its revenue. The C-suite to-do list CEOs often use elaborate frameworks for setting corporate strategyâyet they still struggle to decide which projects to prioritize. Too many green lights, and everyone ends up feeling stretched. [But business strategy doesnât have to be complicated](, says Harvard Business School professor Felix Oberholzer-Gee. In fact, familiarity with some basic economics and employing one simple exercise are enough for most companies to decide what to move up the list. His approach has another important benefit: It helps clarify whether your company is actually good for customers, employees, and the world. ⦠Start [a free week of membership]( to read [about this simple, ethical approach to corporate strategy](. You asked about unmasking If health officials are lifting mask mandates for the vaccinated, how do I know if the unmasked people around me have gotten their shots? How do I signal to them that I have? In the US, the Centers for Disease Control and Prevention says fully vaccinated people can stop wearing face masks even indoors, with a few exceptions. The actual implementation of this advice will be up to state and local authorities, but this will likely be welcome news to many who are eager to get back to normalcy. But only about a third of the countryâs population is fully vaccinated, so the decision raises questions about unmasking. First among them: How can I be sure if someone I donât know is fully vaccinated, and how do I let people know I am? The answer isnât quite clear yet. At the moment, the only proof of vaccination Americans have is the precious [CDC vaccine card](, but it doesnât seem likely that people will be walking around cities wearing their vaccine card on their shirts. Not to mention, the card is just a piece of paper that is [rather easy to falsify](. The US still doesnât have official vaccine passports, although some independent initiatives have emerged, including New York stateâs [Excelsior Pass](, to digitally certify a personâs status. For now, it seems, much will come down to trust. After all, unvaccinated peopleâwho are at the highest riskâare supposed to wear masks anyway. Handpicked Quartz ð [Why the US should ignore inflation and focus on jobs]( ð± [Covid-19âs resurgence in India is hitting Appleâs manufacturing hard]( ð [African fintech startups still face major funding gaps]( ð [A billion-dollar Covid-19 deal linked to Kenya attracted the attention of US regulators]( ð¬ [The latest carmaker to enter India is ânervousâ about the market right now]( 𥺠[Big US chains are offering perks to lure back service workers]( ð [TikTok is reportedly launching a job recruiting feature]( ð [Can the Adidas-Allbirds sustainable sneaker be more than a marketing gimmick?]( Message from our Partner India is facing a catastrophic second wave of Covid-19. The death toll has now reached over 250,000 with many people dying because of a shortage of essential medical equipment and supplies. With your help we can deploy assisted breathing devices and provide essential medical help to communities that so desperately need it. [Help India Breathe](, help save lives. Surprising discoveries The Russian film industry has entered the space race. Moscow aims to send an actor to the International Space Station before Tom Cruise gets there to [film the worldâs first movie in space](. Ancient mammals once took long walks on the beach in Wyoming. Scientists discovered [two sets of footprints]( along what used to be the coast of a vast, inland sea in North America. PokeÌmon cards are a dangerous commodity. Target announced it will [stop selling them]( after a man pulled a gun at a store in an altercation over the trading cards. 142-year-old seeds can still send up sprouts. In one of the worldâs longest running experiments, scientists [successfully planted seeds]( stashed away by a professor in 1879. Tech companies are trying to make âcoffeeless coffeeâ happen. Atomo Coffee [brews a coffee-like substance]( from sunflower seed husks and watermelon seeds. SHARE TO EARN SWAG Coffee cups, tote bags, free membership, and more. Refer the Quartz Daily Brief to friends, family, and coworkers to earn all of these premium prizes. [Share the Daily Brief today]( and start reaping the rewards. Our best wishes for a productive day. Please send any news, comments, trading cards, and caffeinated seed husks to hi@qz.com. Get the most out of Quartz by [downloading our iOS app]( and [becoming a member](. Todayâs Daily Brief was brought to you by Hasit Shah, Jane Li, Tripti Lahiri, Mary Hui, Annalisa Merelli, Walter Frick, Nicolás Rivero, and Susan Howson. [facebook]( [twitter]( [external-link]( Enjoying Quartz Daily Brief? Forward it to a friend! They can [click here]( to sign up. If youâre looking to unsubscribe, [click here](. Quartz | 675 Avenue of the Americas, 4th Fl | New York, NY 10010 | United States Copyright © 2021 Quartz, All rights reserved.