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APNewsBreak: FBI is reviewing terrorism-related tips

  • FILE - In this Nov. 2, 2016, file photo, the FBI's J. Edgar Hoover headquarter building in Washington. The FBI has been reviewing the handling of thousands of terror-related tips and leads received over the last three years to make sure they were properly investigated and that no obvious red flags were missed, The Associated Press has learned. (AP Photo/Cliff Owen, File)

    FILE - In this Nov. 2, 2016, file photo, the FBI's J. Edgar Hoover headquarter building in Washington. The FBI has been reviewing the handling of thousands of terror-related tips and leads received over the last three years to make sure they were properly investigated and that no obvious red flags were missed, The Associated Press has learned. (AP Photo/Cliff Owen, File)  (The Associated Press)

  • FILE - In this March 20, 2017, file photo, FBI Director James Comey, testifies on Capitol Hill in Washington. The FBI has been reviewing the handling of thousands of terror-related tips and leads received over the last three years to make sure they were properly investigated and that no obvious red flags were missed, The Associated Press has learned. The audit is an acknowledgment of the challenge the FBI has faced, particularly in recent years, in predicting which of the tens of thousands of tips the bureau receives annually will someday materialize into a viable threat. Comey has likened the difficulty to finding not only a needle in a haystack but determining which piece of hay may become a needle.  (AP Photo/Manuel Balce Ceneta, File)

    FILE - In this March 20, 2017, file photo, FBI Director James Comey, testifies on Capitol Hill in Washington. The FBI has been reviewing the handling of thousands of terror-related tips and leads received over the last three years to make sure they were properly investigated and that no obvious red flags were missed, The Associated Press has learned. The audit is an acknowledgment of the challenge the FBI has faced, particularly in recent years, in predicting which of the tens of thousands of tips the bureau receives annually will someday materialize into a viable threat. Comey has likened the difficulty to finding not only a needle in a haystack but determining which piece of hay may become a needle. (AP Photo/Manuel Balce Ceneta, File)  (The Associated Press)

  • FILE - In this July 11, 2016, file photo, visitors at a makeshift memorial outside the Pulse nightclub, the day before the one month anniversary of a mass shooting, in Orlando, Fla. The FBI has been reviewing the handling of thousands of terror-related tips and leads received over the last three years to make sure they were properly investigated and that no obvious red flags were missed, The Associated Press has learned. It follows attacks by people once on the FBI’s radar but who in the last 12 months are accused of massacring innocents in an Orlando nightclub, injuring people on the streets of New York, and gunning down travelers in a Florida airport.  (AP Photo/John Raoux, File)

    FILE - In this July 11, 2016, file photo, visitors at a makeshift memorial outside the Pulse nightclub, the day before the one month anniversary of a mass shooting, in Orlando, Fla. The FBI has been reviewing the handling of thousands of terror-related tips and leads received over the last three years to make sure they were properly investigated and that no obvious red flags were missed, The Associated Press has learned. It follows attacks by people once on the FBI’s radar but who in the last 12 months are accused of massacring innocents in an Orlando nightclub, injuring people on the streets of New York, and gunning down travelers in a Florida airport. (AP Photo/John Raoux, File)  (The Associated Press)

The FBI has been reviewing the handling of thousands of terrorism-related tips and leads received over the past three years to make sure they were properly investigated and no obvious red flags were missed.

The Associated Press has learned the review follows attacks by people who were once on the FBI's radar but who, in the past 12 months, have been accused of violence in an Orlando, Florida, nightclub, on the streets of New York City and at a Florida airport.

In each case, it was determined the suspects didn't require continued law enforcement scrutiny months and sometimes years before the attacks.

The review is an acknowledgment of the FBI's challenge in predicting which of the thousands of tips received annually might one day materialize into a viable threat.