Khalil's attorneys say the government's case against their client largely rests on a single letter from Secretary of State Marco Rubio alleging that Khalil participated in "antisemitic" and "disruptive activities."

The Yale Humanitarian Research Lab says Russia's network of sites for Ukrainian children is larger than previously thought, and programs includes military training for children as young as 8.

President Trump has been using a wide range of tactics in the war with Iran in an effort to force the country to bend to U.S. demands. But experts say…