I don't think you understand how ridiculous this concept is.
In the original story, terrorists were said to have blown up an orphanage in Gotham City, resulting in the deaths of more people (mostly children) than in our real-world bombing of the
Alfred P. Murrah Federal Building in Oklahoma back in 1995.
Do you mean to tell me
not a single Gotham City superhero (like, I don't know, maybe
Batman?!?) and not a single trained U.S. Government agency (FBI, CIA, the U.S. military, A.R.G.U.S., the Suicide Squad, etc.) weren't able to apprehend
even a single member of the terrorism cell before
Holly was able to track down and kill
how many of them in
multiple locations around the world?!?
(And how many of them was she said to have killed?
Hell, it should be stretching the parameters of credibility if somebody like Deadshot or Lady Shiva was able to pull off such a feat, let alone somebody like Selina or
Holly?!?