Renewed clashes between police and students opposed to Israel’s war in Gaza broke out on Thursday, raising questions about forceful methods being used to shut down protests that have intensified since mass arrests at Columbia University last week.Over the past two days, law enforcement at the behest of college administrators have deployed Tasers and tear gas against students protesters at Atlanta’s Emory University, activists say, while officers clad in riot gear and mounted on horseback have swept away demonstrations at the University of Texas in Austin.Prosecutors on Thursday dropped…