(CNN)Hasher Taheb, 21, of Cumming, Georgia, was arrested in connection with a plot to attack the White House and other federal buildings, US Attorney for the Northern District of Georgia BJay Pak said Wednesday. Pak told reporters at a media briefing that Taheb planned to attack the White House and other locations using explosives that included a homemade explosive and an anti-tank rocket. Taheb was investigated after officials received a tip from the community Pak said. Chris Hacker, FBI special agent in charge of the Atlanta office, said the investigation took more than a year. Taheb was acting alone, he...