The move demonstrates the many military options available to defeat any threat, the Pentagon says.
Leading US sports stars attack the president for "offensive" comments about players who protest.
The singer, who released his first album in his 60s, cancelled tour dates just two weeks ago.
Thousands of people nearby have been told to leave as the dam may collapse after Hurricane Maria.
The Catalan government rejects Spain's latest move to stop its disputed independence referendum.
A tremor sends people running into the streets and halts searches for survivors of Tuesday's quake.
America bombers and fighter jets increase tempo of missions as warning to Pyongyang
Crisis piles on woes for debt-laden island already devastated by Hurricane Maria
Economy crawls back from biggest political crises of recent times
PM sets out plans to keep Britain in EU until 2021
Fresh blow to Republican efforts to repeal and replace Obamacare