[CedarDave]

How can we check if we are on the list?

From the article:

The list has not yet been made public.
We reached out to the FBI, the Palm Beach County Sheriff's Office and Martin County Sheriff's Office to see how credible they view the threat and what action they might be taking.
We are awaiting their response.

[ManHunter]

I’m waiting to see the list for myself. I suspect a number of us will be able to tell if it’s legit or just a subset of some American phone books (assuming they’re still published, of course).