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In light of the attempted terror attack in the heart of New York City, major cities around the world are beginning to re-evaluate their preparedness for a similar attack.
Faisal Shahzad was arrested while trying to fly out of New York last Monday night, two days after federal authorities say he left a vehicle filled with explosive materials in Manhattan's Times Square.
The makeshift bomb failed to detonate, preventing what could have been a deadly attack on one of the city's busiest areas.
In the wake of the failed terror attack, cities around the world and ramping up their readiness for a potential terror attack.
In Paris, emergency officials simulated three coordinated bomb attacks on the French capital with ambulance, fire and police services taking part.
The "blasts" went off at the Stade de France National stadium, next to the Seine in the heart of Paris and at a shopping mall.
A spokesperson said the exercise was to prepare the city in the event of an attack and check that authorities were "synched."
In the United States, the federal government has trained more than 330,000 emergency service personnel to be deployed across the country.
We want to know what you think.
If you live in a major metropolitan area, do you think officials in your city are doing everything they can to prepare for a potential attack? Are too many resources being spent on terror exercises and drills? Is this only a big city problem?
Please leave your comment below and be sure to tell us where you're writing from.