>> michael pitts and his attorney plan on an appeal, along with the other teachers that were sentenced. and that could take up to two years or more. >> in pakistan, ten men have been sedged to life in prison for the attempted murder of a teenage activist. he was shot in 2012 on her way home from school, targeted by the taliban because of her support for girl's education. the now 17-year-old was awarded the nobel peace prize last year. >>> it has been 40 years since the fall of dying on. what viet nam is like now. >>> plus, more evacuations in southern chile. a long dormant volcano is erupting again. >> vietnam celebrated the 40th anniversary of the fall of saigon today with a huge military parade. sending congratulatory messages to vietnamese leaders for what is known as unification day. and at the site, a group of former u.s. marines honored the last two u.s. servicemen killed in the two decade-long war. millions died, including 60,000 american soldiers, and ali velshi's scott reports from hochimen city. >> this is here, the same location where the u.s. was in 1975. and the scene of t