World News Roundup

20-thousand people ordered to evacuate after a wildfire explodes north of Los Angeles. 17-year-old shooter opens fire in Nashville high school cafeteria, killing one and wounding another before turning the gun on himself. Trump administration prepares to send troops to the southern border. CBS News Correspondent Jennifer Keiper with tonight's World News Roundup. Learn more about your ad choices. Visit megaphone.fm/adchoices