MANILA (Reuters) -Philippine security agencies stepped up safety protocols on Saturday after Vice President Sara Duterte said she would have President Ferdinand Marcos Jr assassinated if she herself were killed. In a dramatic sign of a widening rift between the two most powerful political families in the Southeast Asian nation, Duterte told an early morning press conference that she had spoken to an assassin and instructed him to kill Marcos, his wife, and the speaker of the Philippine House, if she were to be killed.