The CDC reports that “dogs bite 4.5 million people” annually. And one particular group of people faces the threat of dog attacks on a daily basis; letter carriers. Each year, more than 6,000 letter carriers will be victims of dog attacks.
From the 20th century to the present, Russia has been the primary beneficiary of American espionage. Here's a look at the most memorable offenders, from Aldrich Ames of the CIA to Robert Hanssen of the FBI.