Blame game escalates in pedestrian bridge collapse that killed six

What precisely caused the bridge to crumple remains very much an open question, independent experts say.  Mary Ellen Klas, Andres Viglucci and David Ovalle report for the Tampa Bay Times.

http://www.tampabay.com/florida-politics/buzz/2018/03/19/blame-game-escalates-in-pedestrian-bridge-collapse-that-killed-six/