The New York City Police Department is bolstering its efforts to thwart another terror attack.
The newly created Chief of Counterterrorism and Chief of Intelligence were sworn in Friday at One Police Plaza.
Police Commissioner Ray Kelly also announced a new global cooperation with France.
Through an interpreter, French Interior Minister Manuel Valls said authorities in New York and Paris have a lot to learn from each other.
"Big cities of the world face the same problems and the same challenges," Valls said through an interpreter. "We have to fight against drugs, organized crime. We are facing terrorism, and we have to compare our analysis of those risks."
The department also promoted a number of other officers.