South Korea conducted more military drills Tuesday, the latest to deter North Korea after its nuclear test on Sunday. But there are growing concerns about U.S.-South Korea relations, as President Trump pushes South Korea to get tougher, threatening a trade deal and potentially driving a wedge between the two allies. William Brangham reports on the tensions rising with the Korean peninsula.
Tuesday on the NewsHour, the Tump administration plans to end DACA, the immigration program that permitted undocumented young people to stay in the U.S. Also: The South Korean response to North Korea's nuclear threat, the ongoing aftermath of Harvey's devastation, rethinking college with online masters degrees and the world's most endangered language.