will be watching this closely to see how this army treats their sunni brothers if they takeover. christine. >> thanks, ian lee in cairo. watching that offensive. vatican officials say isis threats against pope francis are real. the head of the vatican police force says they are not just making threats against a propaganda campaign but there is no specific plan for an attack. pope francis is fully aware of the risk but doesn't plan on compromising his style of ministry. the federal death penalty trial of dzhokhar tsarnaev set to begin on wednesday. in court on monday the prosecution and defense battled over how soon they can discuss the role of the older brother tam tamerlon. they sparred over how much evidence the jury will be shown.