The gunman had written a “manifesto,” the president said, before trying to enter a dinner in Washington for the White House press corps.

The deaths of two C.I.A. officers in a crash in northern Mexico sparked questions about authorization and sovereignty, but also reflected a longstanding, sensitive security partnership between the two countries.

For many people in Japan, the country’s regular tremors are not a big deal. Officials are urging them to prepare for the next catastrophic quake.