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Critical mass

By Brian Williams, Anchor and managing editor

It was bound to happen -- the stars have aligned, I've run out of sleep (and waking hours) and have been overrun with work and phone calls related to Denver, St. Paul and Los Angeles at the end of it all -- for our "Stand Up To Cancer" special.

With it all coming to a head and no way out except to dig in, I'll have to beg off any more extensive a post than this.

Back to work -- and we hope you can join us for tonight's broadcast. Thanks for watching throughout our travels...we will see you from Denver.