FBI special agent in charge of Oregon Arthur Balizan, right, makes remarks while Dwight Holton, U.S. Attorney for Oregon looks on during a news conference in front of the Salman Al-Farisi Islamic Center in Corvallis, Ore. Sunday, Nov. 28, 2010, where an alleged arsonist set a fire in the early morning hours. Anger on Sunday over a Somali-born teen's failed plan to blow up a van full of explosives during Portland's Christmas tree lighting ceremony apparently erupted in arson on Sunday when a fire damaged the Islamic center once frequented by the suspect. Police don't know who started the blaze or exactly why, but they believe the mosque was targeted because terror suspect Mohamed Osman Mohamud, 19, occasionally worshipped there. (AP Photo/Rick Bowmer)

Photo by: Rick Bowmer

FBI special agent in charge of Oregon Arthur Balizan, right, makes remarks while Dwight Holton, U.S. Attorney for Oregon looks on during a news conference in front of the Salman Al-Farisi Islamic Center in Corvallis, Ore. Sunday, Nov. 28, 2010, where an alleged arsonist set a fire in the early morning hours. Anger on Sunday over a Somali-born teen's failed plan to blow up a van full of explosives during Portland's Christmas tree lighting ceremony apparently erupted in arson on Sunday when a fire damaged the Islamic center once frequented by the suspect. Police don't know who started the blaze or exactly why, but they believe the mosque was targeted because terror suspect Mohamed Osman Mohamud, 19, occasionally worshipped there. (AP Photo/Rick Bowmer)