FBI investigating mailings labeled 'anthrax' Several newspapers and television stations, along with at least one congressman's office, received envelopes Wednesday labeled "anthrax," law enforcement authorities said. Tests have turned up no evidence so far that the packages were dangerous. Investigators said many of the mailings had the same fictitious Sacramento return address and contained an envelope marked "anthrax" and a CD labeled with a digital image of former Secretary of State Colin Powell. So far, all of the powder in the packages has tested negative, said FBI agent Darrell Foxworth in San Diego. The packages the agency has identified so far were sent to The San Diego Union-Tribune, the Charlotte Observer in North Carolina, two Sacramento television stations and the office of Rep. George Radanovich in Modesto, said FBI agent Steve Dupre in Sacramento....