The US government's web of surveillance is vast and interconnected. You can be pulled into the National Security Agency's database quietly and quickly. Through ICREACH, a Google-style search engine created for the intelligence community, the NSA provides data on private communications to 23 government agencies. More than 1,000 analysts had access to that information. It was confirmed earlier this month that the FBI shares its master watchlist, the Terrorist Screening Database, with at least 22 foreign governments, countless federal agencies, state and local law enforcement, plus private contractors. The watchlist [is] based on [low] standards and secret evidence, which ensnares innocent people. Indeed, the standards are so low that the US government's guidelines specifically allow for a single, uncorroborated source of information - including a Facebook or Twitter post - to serve as the basis for placing you on its master watchlist. Of the 680,000 individuals on that FBI master list, roughly 40% have no recognized terrorist group affiliation", according to the Intercept. These individuals don't even have a connection - as the government loosely defines it - to a designated terrorist group, but they are still branded as suspected terrorists. The US [government uses] a loose standard - so-called "reasonable suspicion" - in determining who, exactly, can be watchlisted. ["Reasonable suspicion"] requires neither "concrete evidence" nor "irrefutable evidence". Instead, an official is permitted to consider "reasonable inferences" and "to draw from the facts in light of his/her experience".