The problem here is you have an assinine government agency telling the public they cannot help their fellow citizens. The idea that everyone must look to some government agency when they need help is quite possibly the single biggest domestic problem in this nation today.
Oh, and his example is more Bravo Sierra. First off, after Boxer, Feinstein, and the rest of them, there probably aren't enough armed law abiding citizens to have one likely to reside within 50 miles of the next police standoff. And second, even if there were, no one in their right mind is going to walk up to a police barricade with a high powered rifle and look at a policeman and say "You guys need some help? I can take that guy out if you want me to." What a crock.