A meltdown at Situational Awareness, an A.I.-focused investment firm, is raising tough questions about the Wall Street banks that lent billions to the upstart firm.

Meta is exploiting a lucrative tax break intended to support research and experimentation. Its own accountants say the gambit is risky.

They began as modified motorboats. Now, Ukrainian sea drones act as miniature aircraft carriers, and other countries want in.

“Yeah, everyone’s afraid of A.I., and nobody trusts the federal government, so Trump was like, ‘Let’s combine them,’” Jimmy Fallon said.

A Republican eager to prove the former special counsel was dishonest appeared to instead demonstrate his own confusion over basic facts.