Greg Bear - Mariposa

In an America driven to near bankruptcy with crushing foreign debt, the Talos Corporation stands out as a major success story – training soldiers and security forces from around the world and providing logistics and troops for nearly all branches of the United States government. But Talos has another plan in mind – the destruction of the federal system and constitutional law.
Three FBI agents are all that stands between Talos's CEO Axel Price and the subversion of our nation. Fouad Al-Husam is working undercover in Lion City, Texas, on the Talos Campus – but he may have just overplayed his hand. Agent William Griffin will engage in a desperate diversion to try to rescue Al-Husam, and the top-secret information he literally carries in his blood.
Rebecca Rose is called into action to partner with an unlikely hero: Nathan Trace, one of a team of four who created and programmed the thinking machines that are about to help Axel Price in his plans for domination. Trace and his colleagues were caught up in a violent incident in the Middle East several years ago, and experienced Post-Traumatic Stress disorder. All of them were forcibly enrolled in a treatment program sponsored by Talos Corporation, code-named Mariposa – which supposedly cured their PTSD. But now they are beginning to notice unexpected side effects. The Mariposa subjects are being liberated from nearly all human emotions and concerns – and all mental limits – to become brilliant sociopaths. They are out of control and they must die.