National Security and Foreign Affairs

Since the Cold War ended 25 years ago, Americans haven't thought much about nuclear war. That changed slightly in the recently concluded presidential campaign, but it needs to change dramatically, many experts say.

Much has been made of concerns over ExxonMobil CEO Rex Tillerson's ties to Russian leadership as his nomination to secretary of state is evaluated. But to Southern Californians, the company legacy under Tillerson features serious environmental violations and mishaps, some of which are still under investigation.

The United States has decided to limit military support to Saudi Arabia's campaign in Yemen because of concerns over widespread civilian casualties and will halt a planned arms sale to the kingdom, U.S. officials told Reuters.

The Obama administration will curtail some intelligence sharing with Saudi Arabia following a review of military assistance, an official said, but it will expand support in other areas despite intense criticism of Saudi strikes on civilians during the Kingdom's air war in Yemen.

Democrats on the Senate Intelligence Committee are keeping up their pressure on the Obama administration to make more information public about alleged Russian meddling in the U.S. election.