AP Photo/Paul Sancya

Waymo, Alphabet's self-driving car unit, has asked a federal judge in California for a preliminary injunction to block Uber's self-driving car project, according to new court documents obtained by news outlets.

Expert testimony: Waymo also filed the sworn testimony of Gary Brown, a forensic security engineer at Google since 2013, according to The Verge. Brown says that according to logs from Google's secure network, Anthony Levandowski, a Google engineer who left the company to start the self-driving car startup Uber acquired last year, downloaded 14,000 files from Google containing proprietary information before leaving the company in early 2016. Brown also names two other engineers, Radu Raduta and Sameer Kshirsagar, who he claims also downloaded proprietary files before leaving Google to join Levandowski.

In late February, Waymo filed a lawsuit against Levandowski's startup and Uber, claiming they stole intellectual property from Google.

What to watch: Uber has called the lawsuit "baseless," so it's likely to try to prove that its own technology is different from Waymo's. Last year, in an interview with Forbes, Levandowski emphasized his team didn't steal any intellectual property from Google and it has "all the logs" to show that.

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Updated 52 mins ago - Politics & Policy

Supreme Court clears way for first federal execution since 2003

Lethal injection facility in San Quentin, California. Photo: California Department of Corrections and Rehabilitation via Getty Images

The Supreme Court ruled early Tuesday that federal executions can resume, reversing a lower court decision and paving the way for the first lethal injection since 2003 to take place at a federal prison in Indiana, AP reports.

The big picture: A lower court had delayed the execution, saying inmates had provided evidence the government's plan to carry out executions using lethal injections "poses an unconstitutionally significant risk of serious pain."

2 hours ago - Health

More Republicans say they're wearing masks

Data: Axios/Ipsos poll; Chart: Andrew Witherspoon/Axios

Nearly two-thirds of Americans — and a noticeably increasing number of Republicans — say they’re wearing a face mask whenever they leave the house, according to the latest installment of the Axios-Ipsos Coronavirus Index.

Why it matters: A weakening partisan divide over masks, and a broad-based increase in the number of people wearing them, would be a welcome development as most of the country tries to beat back a rapidly growing outbreak.

Buildings are getting tested for coronavirus, too

Illustration: Eniola Odetunde/Axios

Testing buildings — not just people — could be an important way to stop the spread of the coronavirus.

Why it matters: People won't feel safe returning to schools, offices, bars and restaurants unless they can be assured they won't be infected by coronavirus particles lingering in the air — or being pumped through the buildings' air ducts. One day, even office furniture lined with plants could be used to clean air in cubicles.