They can stop saying that the police were there in the first place to defend the protesters. That is a joke. Law enforcement in the U.S. is a right wing institution, and they detest all left leaning groups, and their right to protest. The Dallas PD left the "wanted" photo of Mark Hughes (who was wrongfully identified as a suspect) on their twitter account all day today, despite knowing he wasn't the suspect. He received thousands of death threats, according to his lawyer. Payback has already begun. The police want all other parties to take a step back and reconsider their rhetoric, while they have no such intentions of doing the same. Then you have the retired Florida congressman today saying that "This is war", and for the president to "watch out". Threatening a sitting president is illegal no matter who you are, but when it's done by a former congressman, it could even be considered an act of treason. The police haven't even questioned him yet.