oink, bang bang. oink oinkink oink, bang, bang. >> that was the new black panther group protesting in front of a texas jail, one of the angry chants we have seen against police in recent months. we have heard from folks like the two law enforcement officers you just saw. so far haven't heard much from washington. however, take a walk back with me to 2011 when a shooting in tucson led to an ang rary choru complaining about what they said was angry tea party rhetoric. >> saying in politics, in the media, in public square fashion our rhetoric so that it does not insight but informs. >> maybe constitutionally permissible but shouldn't be acceptable rhetoric. we shouldn't invite it on radio talk shows or tv at least without comment. >> the discourse in america, the discourse in congress in particular to answer your question very specifically has really changed. and i will tell you i hesitate to place blame, but i have noticed it take a very precipative turn towards edginess and a lack of civility with the growth of