Feb. 20 -- Accused spy Robert Hanssen was arrested under dramatic circumstances on Sunday, but the FBI's investigation of him involved months of less glamorous legwork. Concluding a four-month inquiry ...

April 6 -- Accused spy Robert Hanssen seems to have been a master of duplicity, but it appears that at least one of his roles was not an act — that of devout Christian. He did more than plaster his ...

Robert Hanssen, one of the most notorious spies ever convicted in the U.S., died in a federal prison in Colorado on Monday. He was 79 years old. Prison officials said Hanssen was found unresponsive in ...

"We shall be ready to retrieve your package," the Russians wrote FBI agent Robert Philip Hanssen in October 1999. Hanssen was to leave them a signal for the drop: a vertical mark of white adhesive ...

THIS IS A RUSH TRANSCRIPT. THIS COPY MAY NOT BE IN ITS FINAL FORM AND MAY BE UPDATED. CAROL LIN, CNN ANCHOR: So many questions about 56-year-old Robert Hanssen, a father of six, a husband, who lived ...

The 28-year-old CIA personnel employee was escorted into a cramped, windowless room with a small table and four metal chairs. "Please sit down," a waiting FBI agent told her. "We have some bad news ...