Katie Couric admits that her new gig as anchor of the CBS Evening News has been "a little harder than I thought it would be." "Some people out there are rooting for me to fail," Couric, 49, tells Esquire in its January issue. "You have to be unwavering in your convictions that you're doing something good, because there are a lot of circling vultures that will eat you alive." Couric points out that Esquire itself criticized her after her Sept. 5 debut. "You guys even take a shot at me," she tells the magazine. "You have something in the November...
