Vox Sentences - What's the deal with herd immunity?

• The United States is following through on President Biden’s commitment to withdraw all troops from Afghanistan by September 11, 2021. But many worry that without American help, the Afghan government will be easily overrun by militant Taliban insurgents. [NYT / Thomas Gibbons-Neff]
• On Sunday, Joint Chiefs Chairman Mark Milley admitted Afghanistan could be facing “bad possible outcomes” in the wake of Biden's call to leave. "Which one of these options becomes reality at the end of the day, we frankly don't know yet and we have to wait and see how things develop over the summer,” Milley told reporters. [CNN / Oren Liebermann]
• Violent attacks on civilians are surging, up 38 percent in the six months since peace talks began between the Taliban and the Afghan government in September. The US State Department has ordered government employees to leave the American embassy in Kabul if their work can be completed anywhere else. The Taliban is believed to be driving these increased attacks and incidents of violence. [NBC News / Saphora Smith]
• The Taliban previously warned of a violent reaction if American troops weren’t out of the country by May 1, a deadline agreed to by former President Donald Trump. Now, the group is acting out. On Monday, insurgents killed at least seven people at an army post in southwest Afghanistan. [Reuters]
• And as the Taliban gains militarily, Afghanistan’s central government looks weaker and weaker. Its president, Ashraf Ghani, is becoming increasingly isolated, swept aside as the US and the Taliban configure Afghanistan’s future from opposite ends. [NYT / Adam Nossiter]

[AP / Elliot Spagat]

• Indian Prime Minister Narendra Modi is now seeing the consequences of a national Covid-19 crisis he's tried to ignore. His party lost in a spate of elections Sunday, most notably in the populous state of West Bengal. [NBC News / Amy Sood]
• Manchester United fans stormed Old Trafford while protesting the club’s ownership Sunday, delaying a highly anticipated match between ManU and Liverpool. They were responding to the club's involvement in the European Super League, an ill-fated venture that could have stripped money and support away from most of Europe’s domestic teams. [CNN / John Sinnott]
• Critics are calling Australia’s threat to jail its own citizens for returning from India “racist” and a violation of rights. Those accusations have been dismissed by Prime Minister Scott Morrison and his Cabinet, who say they are valuing public safety over politics. [BBC]
• Unemployment is down, but the pandemic is still affecting first jobs, as youth unemployment continues to trend higher and more young people are putting off college. It’s evidence that the nation's economic recovery still has a long way to go. [AP / Erica Pandey]