Drive Free by John Stossel
Regulators want their fingers in everything. A new idea gives them an excuse to draw attention to themselves as "consumer protectors." In addition, existing taxi companies request regulation. They want politicians to regulate new competition out of existence.
Luckily, technology and capitalist innovation sometimes move faster than the lazy dinosaur that is government. Lyft, Uber and Sidecar have quickly become popular, and this may help them avoid being crushed. By contrast, politicians don't hesitate to destroy things that people think of as weird or dangerous.