Edge of Honor by Brad Thor
This is a Scott Horvath adventure. Several violent attacks have taken place, which all seem to be part of a master plan to destabilize the US. And members of the government may be involved. Since Scott is no longer employed by the Carlton Group, he has to form his own merry band to untangle the mystery and save the country. It's quite the page-turner. And I do love his Norwegian wife, Solvi, who is as fearless as Scott is.