ACCOKEEK, Md. -- A car plowed into a crowd that apparently gathered to watch a drag race on a suburban road early Saturday, killing seven people and injuring at least four, police said. The car went out of control on Route 210 around 3:40 a.m. and hit people standing on the roadside, Prince George's County Police Cpl. Clinton Copeland said. A tractor-trailer that came by shortly afterward may also have struck someone on the road as it tried to avoid the crash, he said. -snip- Route 210 has two lanes in each direction and traffic lights about every 150 to...