<sod >An Amtrak train making the first-ever run along a faster new route hurtled off an overpass Monday near Tacoma and spilled some of its cars onto the highway below, killing at least three people, authorities said.< eod>< sod > Three people were killed and around 100 were injured when the train hurtled off an overpass Monday near Tacoma and spilled some of its cars onto the highway below on a route that had raised safety concerns.< eod>