a top counterterrorism official says the pace has been relentsless. the past 13 months have been as intense it if not more intense because of the variety of threats than anytime since 2001. and no one sees the tempo slowing. we ve even all of these various threat streams coming together and hitting a confluence at the end of december here. so i think that trend will continue into 2011. al qaeda central remains a threat, so is the pakistani taliban which launched the attempted times square bombing. and al qaeda in the arabian peninsula. they dispatched the christmas day bomber and the toner cartridge cargo bombs. in the past two years, nearly 50 american citizens have been