East Germany's secret police, the Stasi, were the most aggressive surveillance force of their day -- at the Stasi's peak, one in 60 East Germans was snitching for the agency. Read the rest

Brazilian Army Captain Willian Pina Botelho posed as Baltazar "Balta" Nunes in a fake Tinder profile and set out to seduce members of left wing anti-government protest movements in order to infiltrate them. Read the rest

The Republican National Convention kicks off this Sunday in Cleveland, Ohio. Most of the highest-profile activists associated with the Black Lives Matter movement are not planning to attend, but that didn't stop FBI agents from contacting them by phone, and showing up at their homes to interrogate them and their grandmothers. Read the rest