Would you support this countrywide? Would you also support something like increased internet surveillance? A digital stop and frisk of every person, so we can catch all the digital bad guys? If so, why not? Because you might get caught up in it? I'm wondering where your line for these sorts of impositions is. It's easy to be for something if you don't expect to get caught in it.
I know that if I was mugged I might be more prone to accepting this sort of liberty loss, but that wouldn't be because I changed my ethical stance, it'd be because I was hurt and scared.