The IRS’s Secretive Undercover Unit Lives In This Building

When the IRS wants to snoop, it calls on a secretive and little-known investigative unit—undercover g-men authorized to pose as lawyers, doctors, journalists, or even priests to gain the trust of targets and gather evidence against them. This building is where the tax collector's spies work. »4/15/15 1:40pm4/15/15 1:40pm

Secret message found in WW2 bullet tells the story of some stupid Nazis

August, 13, 1944. The British 8th Army occupies Florence. The Allies finally break out of Normandy. Meanwhile, somewhere in the south of Tuscany, a soldier writes this encrypted message and hides it inside a bullet. In 2015, someone found it and deciphered it. It was the end of a hilariously absurd story. »1/31/15 12:00am1/31/15 12:00am

Inside the Former Soviet Union's Secret Nuclear Test Cities

Though it played out on the international stage, the arms race between the United States and the USSR took place mainly in rural, isolated parts of the world. The Americans tested their nuclear bombs on a desolate patch of Nevada. The Russians chose a barren polygon-shaped patch of what is now Kazakhstan. »9/12/14 11:54am9/12/14 11:54am