(Portland, OR) -- A man who was convicted of attempting to set off a bomb at a Christmas-tree lighting ceremony in downtown Portland is scheduled to be sentenced today. Mohamed Mohamud was arrested in November 2010 after the bomb turned out to be a fake that had been planted by undercover FBI agents. A federal jury found Mohamud guilty in January 2013 on one count of attempting to use a weapon of mass destruction. Prosecutors are recommending a 40-year sentence, while the defense wants a sentence of no more than ten years for Mohamud.