September 22, 2017 3:50 pm Thousands of Participants Joined Annual Stair Climb Thousands of participants climbed the 75-story U.S. Bank Tower on Friday for the 24th annual Stair Climb, a fundraiser for the Ketchum-Downtown YMCA. US & World Videos 4:00 Firecrackers thrown at pro-Palestinian encampment during protester clash at UCLA 1:06 Interesting facts you never knew about The PGA Championship 1:45 NYPD enters Columbia University in riot gear to clear protest 6:17 Workers' comp claim denied after nurse's coworkers fail to give CPR 3:25 Little or no reaction from California officials on UCLA protest