On this Veteran's Day weekend -- Bill Whitaker shares a cautionary tale of how five U.S. soldiers -- including two Green Berets -- died -- when they were hit by a bomb that was dropped by an AMERICAN warplane. There's a conservative effort to protect rhinos from poachers -- who are being targeted for their horns. Lara Logan introduces us to South African rancher John Hume -- who has his own way of savings the rhinos -- on tonight's "60 Minutes." Learn more about your ad choices. Visit megaphone.fm/adchoices