poor visibility

Authorities are looking for answers while trying to determine Monday what caused the horrific pileup on Interstate 75 south of Gainesville. (Photo by Erik S. Lesser/Getty Images)

Cause Sought for Deadly Gainesville Highway Pileup

GAINESVILLE, Fla. (AP) — Authorities in Florida were trying to determine Monday what caused the horrific pileup on Interstate 75 south of Gainesville, where a long line of cars and trucks collided one after another on a dark highway so shrouded in haze and smoke that drivers were blinded.

CBS Tampa–01/30/2012

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