April 17, 2012 1:32 pm Metro Bus Catches on Fire Police are still investigating why a Metro bus caught fire on Tuesday morning on Rt. 50 in Prince George’s County. NBC4’s Barbara Harrison has more. Local 0:24 1 killed, 23 others hurt in Maryland party bus crash 2:29 George Washington University president says pro-Palestinian encampment is ‘unlawful' 0:51 25 arrested in pro-Palestinian protest at UVA 1:42 Man dies after crashing into White House security barrier 1:11 Woman found shot to death inside car in Landover