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"I feel indignation over this immoral and heinous act," Japan's Shinzo Abe said.
The double-decker passenger cars are intended for commuter services in southeast Michigan.
A team of builders and designers have created what is essentially a house that can fit in a room.
Philadelphia police are investigating a fatal crash on Roosevelt Boulevard in Frankford.
Firefighters and paramedics were called to a fatal crash in Hockessin, Delaware early Sunday morning.