Congressional Republicans asked the Obama administration on Wednesday to provide documents related to last month's anthrax scare at a U.S. lab facility, where more than 80 people were initially feared to be exposed to the deadly pathogen. In a series of letters, top Republicans on the House Energy and Commerce Committee asked for the results of several Centers for Disease Control and Prevention (CDC) lab inspections and audits of potential weaknesses in biosecurity protocols dating back to October 2007. "How many suspected exposures to select agents and/or toxins have been reported at CDC since October 2007? How many actual exposures have been reported," said the July 9 letter to CDC Director Dr. Thomas Frieden signed by three Republican panel members including Chairman Fred Upton of Michigan. The lawmakers, who also requested information from the inspector general of U.S. Department of Health and Human Services, said they were gathering information for a July 16 hear