March 23, 2009 3:34 pm Second-Hand Smoke Increases Risk of Depression Non-smokers subjected to cigarette smoke at home or at work are twice as likely to suffer from major depression than people not exposed to second-hand smoke. US & World Videos 2:56 Kelly Clarkson jokes Jim Gaffigan is the Brock Purdy of dads 1:41 Prince William shares brief update on Princess Catherine to well-wishers at UK visit 1:28 LAPD dismantles protester encampments at UCLA 1:36 Arizona Senate repeals 1864 abortion ban 3:37 4.1-magnitude earthquake shakes Corona