FORT WORTH, Texas (AP) — RadioShack has hired former Treasury Department adviser Harry J. Wilson to help with its turnaround efforts. The struggling consumer electronics retailer said Wednesday that Wilson will serve as chief revitalization officer, reporting to its board and CEO Joe Magnacca. RadioShack said that Standard General, Litespeed Management and other investors are providing $120 million in an investment that the chain expects will be converted into equity securities.