PHOENIX (AP) -- An Arizona legislator had a narrow escape on Interstate 10 last week during a dust storm in Pinal County when chain-reaction collisions killed 3 people. State Sen. Steve Farley was driving back to Tucson after a meeting in Phoenix when visibility on the freeway plummeted because of the dust storm. Farley told the Arizona Capitol Times that he stopped just before the collisions started. He said an SUV landed in the median about 50 feet away and that a tractor-trailer rig then narrowly missed his vehicle before it slammed into other vehicles. Farley says he's asking the state Department of Transportation what can be done about dust storms that slash visibility and create dangerous driving conditions on I-10.