NY-NJ security tight in Super Bowl run-up
The authorities outlined the efforts at a briefing on Wednesday in Manhattan.
Commissioner William Bratton said the New York Police Department is using extra officers, bomb-sniffing dogs and surveillance cameras to watch for trouble this week along the ''Super Bowl Boulevard'' street fair in Manhattan.
New Jersey state police will deploy up to 700 troopers at MetLife Stadium on Sunday.
A 24-hour federal command center in New Jersey is monitoring domestic and international intelligence.
Authorities also are studying terror attacks prior to the Winter Olympics in Sochi for lessons on how to better protect mass transit.