NEW YORK (WCBS 880) — Al-Qaida has a new leader, but New York City’s top cop says our tactics against terrorism won’t change.

Ayman al-Zawahiri’s hatred for the US is fueled by the deaths of his wife and two of his children in a military air strike, but his new number one status doesn’t change New York City’s anti-terror strategies, says Police Commissioner Ray Kelly.

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WCBS 880’s Marla Diamond reports: Kelly Says NYPD Anti-Terrorism Tactics Won’t Change

“Obviously, we have to be concerned about any sort of radiological material being used for a dirty bomb or perhaps even something worse,” he said.

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The NYPD held a dirty bomb exercise in April, working with 150 law enforcement agencies.

“We have to protect ourselves,” said Kelly. “We’re doing everything I believe we reasonably can do to protect New York City.”

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