hello, i m paula newton, here s an update on the top stories we re following right now. u.s. president barack obama and cuban president raul castro shaking hands and meeting briefly in panama as the summit of the americas kicks off. also at the conference the u.s. is expected to remove cuba from a list of countries that sponsor terrorism. in pakistan, an act of targeted killing. that s what officials are calling an attack on a construction site that happened early saturday. they say armed militants opened fire and killed at least 20 people who were working on a bridge. it happened in the southwestern providence of baloch istan.