Fifty years ago none of those things existed. People smoked cigarettes everywhere--even in hospitals. Cars had no seatbelts or airbags. And any kid dorky enough to wear a helmet while riding a bicycle would have been laughed off the street.

Today, Americans are safer than ever. Accidents, violence, and disease are way, way down. Every year we get safer and safer...and safer...

That's good, right?

I wonder. Being safe is good--to a point--but I sometimes think we are so obsessed with safety we miss out on much of what life has to offer. I mean, if you wanted to be really safe, you would eat nothing but oatmeal, kale and lentils. You would never play contact sports, or ride a skateboard, or go for a hike in the mountains, or speak to a stranger, or drive a car, or give birth to a child...or do much of anything at all.

What if this safety trend continues? What will it be like in another fifty years? How safe do we want to be? Will sneezing in public be considered assault? Will tricycles have airbags? Will overweight people be sent to forced-labor diet farms? Will kitchen knives bear warning labels? (Caution: This implement can cause cuts!) Will french fries be as illegal as crack cocaine?

Thinking about these things was what led me to write Rash , a sometimes funny, sometimes not funny book about a teen growing up in the "United Safer States of America," circa 2074, when pedestrians wear walking helmets, football has been banned, verbal abuse is a misdemeanor, and obesity is a felony.

And because just about everything is illegal, nearly 20% of the population is in jail, where they provide the manual labor that keeps the USSA running.

Bo Marsten, like his imprisoned father and brother, has trouble following the rules. Rash is his story.