Federal prosecutors say the former OpenAI engineer charged with hiding a recording device in an executive conference room appears to have "considerable support from a foreign government." Their filing says the Saudi government and a Saudi military member booked flights for his wife and baby after his arrest, and that a Saudi royal told him, "Saudi needs you more then the US!" On Monday, a judge ordered him held without bail.

The State Department issued 26,483 immigrant visas worldwide in February, about half as many as two years earlier, according to its own monthly tables. Visas for parents of U.S. citizens fell by more than half, the diversity visa lottery issued none, and Cuba, Pakistan and Nigeria each went from more than 1,000 visas to fewer than 70. Here is what the numbers show and the policies behind them.