Wow. Again. Law enforcement will never be your specialty.

When a threat of a bomb at a bank in let's say in the city of New York is called in, the operator will then notify their superior. They are encouraged to make that their priority. Will try to get as much information as they can, possibly narrow it down to a bank. They will notify all precincts of the threat PLUS the bank company it's self and their security team will work with local PD. FBI steps in when a bank and bomb threat is made so even more man power is used to be vigilant at those banks. They will then notify bomb squad, ATF and the fire departments of the possible threat. That's how it works when a threat is called in. Law enforcement is out for vigilance not for details. Details are for AFTER the crime has happened. No law enforcement agency takes any threats lightly. Unless the person collecting the information doesn't think it's serious at all. That's the only way a threat or intelligence can have a brain fart as bad as 9/11.

There is a reason why the FBI, US Marshals, ATF, CIA have different divisions. So they don't use up that "man power". No such thing as man power when there is FBI offices all over the United States, state and local police, National Guard etc. All of those people are called in for statewide threats.

Stick to something you know.