Man charged with U.S. stadium bomb threat hoax (Adds name of accused, details, previous NEW YORK) By Matthew Verrinder NEWARK, N.J., Oct 20 (Reuters) - A 20-year-old Wisconsin grocery clerk has been charged by U.S. authorities with making a hoax threat to detonate "dirty bombs" at seven National Football League stadiums across the United States. Jake Brahm, who lives at home with his parents in Wauwatosa, Wisconsin, was accused of spreading a fake message on the Internet that threatened to hit the sites with weapons of mass destruction and radioactive materials. If convicted, he faces a maximum of five years in prison and a $250,000 fine. "Jake Brahm's unsportsmanlike conduct caused the United States to divert valuable resources from the real battle," Leslie Wiser, FBI special agent in charge Newark division, told a news conference. "This coming Sunday the NFL referees won't be the only ones wearing stripes." Brahm will appear in federal court in Milwaukee later on Friday. U.S. Attorney Christopher Christie said Brahm would be extradited to New Jersey where he would face the federal charges and that it would up to the other six states to decide if they want to charge him with state offenses. On Wednesday, the Department of Homeland Security warned National Football League officials in Miami, New York, Atlanta, Seattle, Houston, Oakland, California, and Cleveland about a dirty-bomb threat posted on Monday on an Internet site. But by Thursday they had declared the threat a hoax. "There's no evidence that Mr Brahm had the ability or the intention to deliver a dirty bomb to one of these stadiums," Christie said. The complaint said Brahm's threat claimed bombs would be delivered by trucks and that the death toll from the bombs would be 100,000 from the initial blasts and countless other deaths later from the radioactive fallout. The threat, posted on www.4chan.org, said the attacks would coincide with the end of the Muslim fasting month of Ramadan and would spark civil wars across the world, bring the global economy to a halt and allow "general chaos" to rule. It said al Qaeda leader Osama bin Laden would claim responsibility for the attacks, which he would dub "America's Hiroshima". "Defendant Jake J. Brahm admitted that he knew the above-described message was false when he authored and posted it," the complaint states. (Additional reporting by Michelle Nichols)