This book is a profound and compassionate response to a horrific "accident" (crash) that killed the author's best friend. Singer digs deep into U.S. society's flawed notion of "accidents" and unpacks the conditions that make these "accidents" inevitable, the biases that block us from seeing them clearly and the obstacles to preventing them. I'd recommend this to everyone really, but particularly anyone involved/interested in government, city planning, harm reduction, and societal systems. The more we know, the more we can work toward prevention.