More than a dozen FBI agents investigating the 2001 anthrax attacks descended on Connellsville (PA) Airport Saturday to comb through a UPMC-McKeesport doctor's car. Agents vacuumed Dr. Kenneth M. Berry's white Mercury Sable for evidence, said Frank Sero, an employee at Connellsville Airport, Fayette County. He did not know what the agents were seeking, or what they took from the car. Forensic investigators frequently use vacuums to collect fibers, hair samples and other trace evidence. "I can confirm that we did conduct a search of a vehicle at the Connellsville Airport," said Special Agent Jeff Killeen, of the Pittsburgh field...