My latest read was High Treason by John Gilstrap. This is the fifth book in the Jonathan Grave series. This book leverages all of the key elements of a Gilstrap story. This includes the core set of characters from the previous books, lots of military tech, high-intensity action, and suspense.
High Treason does have a very complex plot that pushes the “believability boundaries.” It is also long at over 500 pages. Despite that, it was an enjoyable read and I expect to continue with the series.

High Treason (A Jonathan Grave Thriller Book 5)
John Gilstrap
First Lady Anna Darmond’s penchant for late-night parties in South East D.C. is a harmless open secret—until she’s kidnapped out from under the noses of her Secret Service agents in a bloody gunfight. It’s an unthinkable crime that, if revealed, could cause public panic. That’s why hostage rescue specialist Jonathan Grave and his team must operate in absolute secrecy.
But Grave soon realizes that, extraordinary as it is, the mission is not all it seems. There are shadows in Mrs. Darmond’s past, cracks in the presidential marriage—and leaks in the country’s critical shields of security. As Grave tracks the missing First Lady through a labyrinth of lies and murder, he confronts a traitor at the highest level of Washington power—and a devastating scheme to bring a nation to its knees.
Released August 1, 2013
561 pages