The FBI is reviewing terrorism-related leads and tips to make sure that nothing was missed during prior investigations, the Associated Press reported Saturday.



A top official told AP that the review of tips from the past three years is an effort to "err on the side of caution."



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The official added that the review is a way for authorities to "refine and adapt to the threat, and part of that is always making sure you cover your bases."

The re-evaluation of prior cases follows numerous incidents in which individuals previously known to the FBI committed violent acts of extremism.



These incidents include the Orlando, Fla., nightclub shooting and the shooting of travelers in a Florida airport.

The review began this year and is being conducted by FBI offices across the nation, the report said.