Matthew Brown, who claims the Pentagon has a secret program to collect footage of UFOs, is the first of several whistleblowers who will soon come forward to release new information about unexplained technology, podcaster and journalist Jeremy Corbell says. Brown, a former national security professional, appeared this week on Corbell and George Knapp's "Weaponized" podcast to say the Defense Department has covertly amassed an archive of UFO videos and pictures from military sources under a program called "Immaculate Constellation." Secure government servers purportedly contain UFO images and lengthy clips the public has not seen. Brown says the objects he saw in the videos aren't necessarily extraterrestrial or nonhuman, but he described them as "exotic and unexplainable" and beyond conventional technology. "We are talking thousands of videos and photos ... that the American public hasn't seen of these advanced craft we call UAP that are of unknown origin," Corbell said. Corbell said he hopes Brown will be allowed to testify before Congress about what he discovered. In the meantime, the podcaster said, he and Knapp have already interviewed several other whistleblowers who have new information about the craft. "We have already recorded with other firsthand whistleblowers that we have yet to release. So, I can promise you, people are coming forward, an army of people are coming forward," he said.