CNN Anderson Cooper 360 September 25, 2015 03:19:00
Highly secure, anybody whose in the surrounding blocks around st. patrick's today has gone through metal detectors. several blocks from here as the crowds continue up fifth avenue. those people have not necessarily gone through that level of security. let's just listen. [ cheers ] >> for everybody inside st. patrick's cathedral, once in a lifetime opportunity to see their pope in that extraordinary house of worship. >> i want to mention before we turn the page from st. patrick's, this building was begin in the 1850s and the idea of the -- when it was open, this was an open field with 100,000