speaking there. at the birthplace of their free speech meant movement, protesting ben shapiro, a mainstream conservative, not known for being particularly controversial. for the latest on the story, let's bring in claudia who is live in berkeley tonight. >> hello, jesse, while the crowd has started to build here, amid a heavy police presence. the leftist group refused fascism, here revving up the crowd prayed about an hour ago, a couple of people were arrested because theirir signs were not n compliance with a city policy. they were too big. and soan far that is just about the most egregious behavior we have seen here. school officials have spent a lot of w time, more than $600,00 to make sure tonight's event is safe. they have called and officers from all ten uc campuses to help secure the area where ben shapiro is set to speak in just a half an hour. police say they will confront anyone wearing a mask if they refuse to take it off.