The Virginia couple who crashed this week's state dinner at the White House met face to face with President Barack Obama in the event's receiving line, officials acknowledged Friday as the Secret Service began investigating whether the couple broke any criminal laws by getting inside without an official invitation. ...more

November 28, 2009

A White House official says the Virginia couple who attended a state dinner without an invitation met President Barack Obama in the receiving line. ...more

November 27, 2009

DNA taken from the bodies of people killed in the 2001 anthrax attacks helped lead investigators to Bruce Ivins, who oversaw the highly specific type of toxin in an Army lab, a government scientist said Sunday. ...more

August 4, 2008

The Justice Department agreed Friday to pay biological-weapons expert Steven Hatfill a settlement valued at $5.85 million to drop a lawsuit he filed after then-Attorney General John Ashcroft named him a "person of interest" in the investigation of the deadly 2001 anthrax attacks. ...more

June 28, 2008

Scientists in Maryland on Thursday said they had built from scratch an entire microbial chromosome, a loop of synthetic DNA carrying all the instructions that a simple cell needs to live and reproduce. ...more

January 25, 2008