"Unfortunately, attacks inspire other attacks."
Ross Bulla, a terrorism and security expert who is president of the Treadstone Group in Denver, North Carolina, says there's a high probability the horrific attack in Orlando, Florida could lead to others and major cities like Sydney, Moscow, Paris, New York City and Washington, D.C., will remain on alert.
But the deadly nightclub shooting has not ratcheted up the terror threat level in the U.S.
>> The latest coverage of the Orlando nightclub shooting
"We're at the highest level for terror threats in the United States that we've been since 9/11," Bulla said.
And we have been for months, he says, because of other credible and perceived threats.
As the FBI investigates Omar Mateen, the gunman killed by police inside the nightclub, Bulla said law enforcement agencies will be busy on the streets and behind the scenes, especially as the LGBT community celebrates Gay Pride month nationwide.
"I do think it will definitely have to impact security around night clubs, venues, and events for a while,” he said.
“This is not unusual for the gay community. Certainly this is the modern day 'Stonewall.'"
And in the world we live in, Bulla says, maintaining a “healthy awareness” of what's going on around us is crucial.
"It's going to really depend on being more vigilant, being more aware of your surroundings,” he said.
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