"Authorities for Bay Area Rapid Transit, or BART, blocked wireless signals in certain stations on Thursday in an attempt to prevent protests opposing the July 3 shooting death of Charles Blair Hill by BART police. Police say Hill came at them with a knife.
First Amendment scholars say they can't remember a time when a public agency in the U.S. moved to disrupt wireless traffic in quite that way. Now, they're trying to stretch old First Amendment principles to fit in the context of new technology."
BART Cell Service Shutdown Raises Free Speech Questions
NPR:
