The Dallas killings are awful but are more related to the ubiquitous 24/7 reporting of virtually any notable death anywhere in the country and of course the video technology that allows bystanders to document such events. The TV stations are all guilty of bumping their ratings by showing this stuff over and over. I got sick of seeing the same video on CNN so switched to Faux and there it was again being repeated every half hour. It's not the reporting that's biased, it's the rush to air just about any video clip that the stations think will attract viewers.