Ring of fire
(Book - Large Print)

Title from web page.

A chilling terrorist plot is about to unfold in the United States, one involving simultaneous attacks across multiple locations in America. It will be up to Pike Logan, Jennifer Cahill, and the Taskforce to prevent the threat from becoming a terrifying reality.

Fifteen years ago, in order to win a contract in the Kingdom, a desperate defense contractor used a shell company to provide a bribe to a wealthy Saudi businessman. Now a powerful player in the defense industry, he panics when the Panama Papers burst onto the public scene. To prevent the exposure of his illegal activities, he sets in motion a plan to interdict the next leak, but he is not the only one worried about spilled secrets. The data theft has left the Taskforce potentially vulnerable, and Pike Logan and Jennifer Cahill are ordered to interdict the next leak as well, in order to control the damage. Unbeknownst to either group, the Saudi has been using the shell company to fund terrorists all over the world, and he has a spectacular attack planned, coinciding with the fifteenth anniversary of 9/11.