and the fbi director said that his remarks about safety, we're not meant to stir alarm, but he didn't that it is a time for people to be vigilant. the people that i spoke to told me it's the little things don't forget to turn on your porch lights during passover ending yes. open the doors to your home, but just at least be somewhat familiar with who you're inviting inside of your house. so that you could be safe throughout the holiday, friday all right. >> camila bernal. >> thank you so much now, today, an orthodox rabbi associated with new york's columbia university as warning jewish students, the campus is not safe and they should quote return home until it is tensions remain high at columbia after several days of pro-palestinian protests and camp men's and arrests, the unrest follows an appearance by the university's president on capitol hill last week, cnn's polo sandoval, joining us now, polo, what is the situation on campus today? what are people