A set of newly published documents shows that under half of the people on the United States Terrorist Screening Database have “no recognized terrorist group affiliation” and that nearly 1,000 new names are added daily.

An August 2013 chart, published Tuesday for the first time by The Intercept, shows that there are one million names on the Terrorist Identities Datamart Environment (TIDE). Of those, 680,000 were on the aforementioned watchlist, and of those, 280,000 had “no recognized terrorist group affiliation.”

The Intercept did not reveal how it got the documents, only saying that they were obtained “from a source in the intelligence community.” In the past, The Intercept has published documents obtained as part of the Edward Snowden cache, but it has specifically mentioned his name when it does so.

The chart shows that “900 to 1,000” records are added or “enhanced” per day, with just 60 records removed in a 24-hour period. The same document highlights five American cities as being the primary providers of “known or suspected terrorists,” including New York City; Houston; Chicago; San Diego; and Dearborn, Michigan, a Detroit suburb of 96,000 people that's home to a large Muslim and Arab community.

Last month, The Intercept published the “March 2013 Watchlisting Guidance,” a 166-page document issued last year by the National Counterterrorism Center, which outlines an “elastic concept of ‘reasonable suspicion.’” On that basis alone, someone can be put in the TIDE.

The documents also show a rapid increase in the use of biometric data.

“Due to the hard work by the [National Counterterrorism Center], writ large, these [known or suspected terrorists] will have their biometric data properly placed into the biometric screening systems,” the Directorate of Terrorist Identities Strategic Accomplishment 2013 document (PDF) states. “This means when one of these known or suspected terrorists attempts to enter the United States either by applying for a visa or through a DHS point of entry screening, regardless of falsified documentation, the subject will likely be denied entry.”