May turn out to be more of a novella than novel.

Storyline:  "Persons of interest" start dying.

SPOILER SPACE BELOW

Turns out a rogue FBI agent gave the list to a Mafia family, who, in a
fit of patriotic furor (only they have the right to kill innocents in
the US) start popping the Islamic Fascists.

I've already floated the basic manuscript past my editor, who feels
like it's outside of her field of expertise (I'm an SF writer of no
repute) but will try someone else.  If I can't get a buyer, I can
always sell it to the Gambinos.