JERUSALEM — Palestinians warned Monday that newly restarted peace talks could be derailed after a deadly clash between Palestinian refugees and Israeli security forces. Three Palestinians were shot and killed at the Kalandia refugee camp near Jerusalem. Israeli security forces say they fired in self-defense after a predawn raid to arrest a suspected militant sparked a riot among residents. It was the deadliest such clash since 2009, when three Palestinians were killed in Nablus during a standoff against Israeli soldiers…