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Especially if you're sick and sunburned (I was) and the symptoms for exposure to the toxins approach what you're feeling pretty closely.
Other than that, I thoroughly loved this book. I'd never read an "eco-thriller" before, but I was definitely impressed by this one. It's like James Bond had a kid with Macguyver and that kid became a professional eco-terrorist, hunted by the government and everything. At the very least, it's definitely worth a read for the action. At the most, you'll love Stephenson's solid style, powerful story and fair approach to environmental issues. Five out of five stars.
Get your copy here: http://www.amazon.com/Zodiac-Neal-Stephenson/dp/0802143156/ref=sr_1_1?s=books&ie=UTF8&qid=1279236986&sr=1-1