BOISE, Idaho (AP) — A Southern Idaho business executive says more must be done to warn drivers about high winds in the Twin Falls area. KTVB reports that thousands of cars and trucks travel in the Magic Valley each day using the Hansen and Perrine Bridges. John Anderson of Gem State Paper and Supply Company saw last week's video of the wind tipping a semi like a toy truck on the Hansen Bridge. His company uses lots of trucks in the region. Anderson says there should be a better system to warn drivers about wind speeds. The Idaho Transportation Department says it is working to put up more permanent signage at those bridges.