Journalists and Politicians refuse to post gun-free signs on their homes

The video really doesn't start until 1:10 into the clip and the most interesting example starts at 2:29.  It is interesting that people will put up a sign saying that they have a gun when they don't, but the reverse is never true and people without guns don't seem to want to advertise that either.  In all my debates, I haven't come across a gun control proponent who would put up a sign like this in front of their home.