Columbia University Tightens Campus Access Amid Security Concerns

New measures follow spring's anti-Israel protests, aiming to safeguard students and staff as new academic year begins.

Campus entry restricted to individuals with university IDs and pre-authorized guests.
Enhanced security protocols include limited entry points and guest registration.
Spring protests led to significant arrests and nationwide campus unrest.
University officials emphasize the need to protect the academic mission and community safety.
Incident of vandalism at a university official's residence under investigation by NYPD.