From the dust jacket:

"Rogue Asteroids and Doomsday Comets is a compelling account of the threat posed to life on Earth from outer space, and of the scientists' response. Killer comets and asteroids populate the cosmos in greater numbers than we have ever imagined. But for the first time, humankind is in a position to prevent calamity. This book makes a compelling case that to waste that opportunity would be both perilous and foolhardy."

Chapter headings are:

1 Fiddling Whle Rome Burns
2 The Swarm around Us
3 Catastrophic Scenarios
4 The World on Fire
5 Holes in the Ground: The Evidence for Past Impacts
6 The Story of the Stones
7 Coherent Catastrophism
8 Stonehenge and the Pyramids
9 Fals Security: The Atmosphere's Shield
10 Great Efforts, Great Ignorance
11 So Began Project Spaceguard
12 Showdown at Los Alamos
13 Keeping Our Fingers Crossed

These are followed by an epilogue, notes, a glossary, bibliography and an index.