Federal safety investigators want Tesla to tell them how it developed the fix in a recall of more than 2 million vehicles with the company’s Autopilot partially automated driving system. Investigators with the U.S. National Highway Traffic Safety Administration have concerns about whether the recall remedy worked because Tesla has reported 20 crashes since it was issued in December. In a letter to Tesla, investigators wrote that they could not find a difference between warnings to the driver to pay attention before the recall and after the recall fix was sent out in an online software update. Read moreUS seeks information from Tesla on how it developed and verified whether Autopilot recall worked

The Met Gala has inspired pajama-clad New Yorkers to fundraise for medical debt relief at an alternative benefit called the Debt Gala. Some 200 attendees dressed for its “Sleeping Baddies” theme to raise money for medical bill relief on Sunday. Hosted in Brooklyn one night before the Met Gala, the benefit’s thrifty getups and raunchy comedy routines are a far cry from its glitzy, star-studded namesake. It’s one of several alternative galas that have emerged to democratize the exclusive springtime fundraiser’s spectacle and highlight other causes. This year’s beneficiaries include Dollar For, a non-profit that says it has eliminated almost $50 million in medical debt. Read moreInspired by the Met, 'sleeping baddies' tackle medical debt at the Debt Gala's pajama party