美国有线新闻 CNN 五角大楼宣布增兵美墨边境（在线收听）

CARL AZUZ: U.S. President's annual State of the Union Address is Tuesday night. It had originally been scheduled for last Tuesday but it was postponed because of the U.S. government's partial shutdown. When that ended late last month, the address was rescheduled. One issue that President Donald Trump is expected to address is the major reason for the shutdown, security at America's southern border with Mexico. The Pentagon announced this week that an additional 3,750 American troops would be deployed to the border.

Their mission, to give extra support to U.S. Customs and Border Protection agents. This could include assignments like installing wire fencing and watching for illegal crossings. The deployment would bring the total number of U.S. military forces there to 4,350. And the new mission i?s scheduled to last for three months. President Trump says this is necessary to stop large caravans of people who are headed to the border with the goal of entering the U.S. illegally.

But U.S. Representative Adam Smith, a Democrat from Washington and the Chairman of the House Armed Services Committee, questioned what the additional troops would be doing at the border and suggested the increase could be unjustified. On Wednesday's show we plan to bring you some highlights of the Republican president's speech and the Democratic party's response.