Now American investigators are exploring whether they can make a case against Abu Hamza. Law-enforcement sources say the Justice Department is investigating Abu Hamza’s alleged involvement in a suspected attempt to set up a “jihad training camp” at a ranch in remote Oregon. As part of the investigation, the Feds recently arrested a British citizen who formerly served as an imam at a mosque in Seattle. American Muslim James Ujaama was also arrested by the Feds as a material witness. Abu Hamza recently admitted to British reporters that Ujaama had worked at his mosque for six months. But while he has publicly praisedQaeda actions like the attack on the USS Cole, Abu Hamza has repeatedly denied any involvement in terrorism. He did not respond to a request for comment.