1/31: Gov. Chris Christie thrown under the bus in bridge scandal; The silver linings playbook of an ALS patient

The former Port Authority executive who set the George Washington Bridge lane closings in motion said New Jersey Gov. Chris Christie knew more about the closures than he has acknowledged; and, Steve Hartman revisits Chris Rosati, who dreamed of hijacking a donut truck and giving away its contents to spread cheer after he was diagnosed with ALS.