BART's decision to shut down cell service to thwart a protest has critics charging First Amendment violations. The hacker group known as Anonymous retaliated against BART by breaking into the transit agency's website and posting information about customers. Are BART's actions justified in order to protect passengers? Is hacking a reasonable way to protest? Are there parallels to the crackdowns in Egypt and Syria?

Guests:

Joseph Menn , San Francisco-based reporter for the Financial Times and author of the new book "Fatal System Error: The Hunt for the New Crime Lords Who are Bringing Down the Internet"

Lynette Sweet , BART director, District 7

Michael T. Risher , staff attorney at the ACLU of Northern California

Dan Goodrich , research associate at the Norman Y. Mineta Transportation Institute at San Jose State University

Eugene Volokh , professor of law at UCLA