Revelations about anthrax scientist Bruce Ivins' mental instability have exposed what congressional leaders and security experts call startling gaps in how the federal government safeguards its most dangerous biological materials, even as the number of bioscience laboratories has grown rapidly since the 2001 terror attacks. ...more

August 8, 2008

After four years pursuing one former Army scientist on a costly false trail, FBI agents investigating the deadly anthrax letters of 2001 finally zeroed in last year on a different suspect: another Army scientist from the same biodefense research center at Fort Detrick in Frederick, Md. ...more

August 2, 2008

Researchers have found a surprising diversity of hardy bacteria in a seemingly unlikely place - the so-called sterile clean rooms where NASA assembles its spacecraft and prepares them for launching. ...more

October 12, 2007

Germs sent into orbit on the space shuttle last year came back to Earth three times more virulent, a finding that could have major implications for astronauts on the International Space Station or on proposed voyages to the moon and Mars. ...more

September 29, 2007