Students must have the right to free speech but “violent protest is not protected” under the law, US President Joe Biden said, as major university campuses are gripped by unrest over Israel’s war in Gaza. “We are not an authoritarian nation where we silence people or squash dissent. The American people are heard,” Biden said on Thursday at the White House. “In fact, peaceful protest is in the best tradition of how Americans respond to consequential issues. But – but – neither are we a lawless country. We are a civil society and order must prevail,” Biden said. Biden said that violence, vandali…