Police patrol Times Square subways; Photo - Daily News

The devastating train bombings in Madrid have spurred NYC to increase transity security. The MTA says there are more uniformed officers and dogs deployed at subway stations, trains, bridges and tunnels. The Daily News reports that more cops are on the platforms at heavy traffic stations like Penn Station, Grand Central, and Bowling Green. NJ Transit and Amtrak are making efforts to increase security as well, but many agree that trains are particularly vulnerable. Mayor Bloomberg asked New Yorkers to pray for those in Spain and emphasized, ""It goes to show we still live in a very dangerous world. We cannot afford to let our guard down . . . We have to be reminded that vigilance is not something we can afford to drop."

New York has been at a High (Orange) Alert level ever since September 11, 2001.