This book would be a fairly average terrorist based techno-thriller if it wasn't for 2 points:
The first is that the author is an extremely experienced military & civil pilot. The two plane crashes described at the start of the book are stomach churning. If you've seen the crashes in movies such as "final destination" or "Alive" you'll know what to expect. Its rare that an author can describe a moment of such terror quite so well.
The second feature is a slightly frightening comment on page 487. "So what's next? Are we going to get a 747 impacting the world trade centre in New York because the two pilots were taken out leaving Kennedy?". This book was published 12 months before 9/11.
Plotwise the book rattles along very nicely. FBI agent Kat Bronsky has more to her than many fictional hero's. The fact that she's female makes a welcome change. She's a cross between James Bond & Clarice Starling. A little more mortality would be nice- surviving one near death encounter is exciting... surviving ten gets tedious.
This book and many of Nance's others deserve 4 stars. (5 should be reserved for works of genius). As far as holiday thrillers/ techno thrillers go he's one of the best.... just don't read this while waiting for a plane- you won't get on board!