The Broken Wheel by David Wingrove

The year is 2207 and Chung Kuo's perfect stasis is falling apart. The Seven's dominance is threatened by a series of terrorist attacks as the War of Two Directions intensifies. Howard DeVore, the Seven's greatest enemy, is masterminding the atrocities—but how can they hunt down a man who seems to be invulnerable? Kim Ward, the Clay-born scientific genius, is attacked by a group of deadly assassins bent on destroying his work. And a group of rich young American rebels intend to create change—at any price.