Weekends with Alex Witt 11/21/15

US Embassy tells Americans in Brussels to stay home

The Belgium capital is on lockdown after intelligence pointed to the possibility of a serious terrorist attack there. Brussels is on the highest state of alert with subways closed and heavily armed personnel in the streets. NBC’s Caludio Lavanga explains why the U.S. Embassy in Brussels has urged Americans to stay home during this lock down. ... more Duration: {{video.duration.momentjs}}