Live ATC - A victim of homeland security??

I used to listen to live ATC webcasts a couple of years ago and was
able to get LAX, DFW, Ohare, etc. Now the only link I can find is for
SoCal approach. The rest of the links are offline, some w/ messages
stating they were requested to stop transmission, etc. Is this due to
security concerns? Did some knucklehead actually think the San Diego
tower webcast was aiding terrorism?? What's next? A top secret
clearance for a wx brief? There are far too many people running
around like headless chickens over terrorism restrictions.