Donald Trump just said that when he is President, he will encourage the police to stop black people on the street and take their guns.
I know that this is anathema in today's Twitter culture, but in order to understand how offensive Trump's latest stop-and-frisk remarks are, you have to go back and consider some context.
http://www.redstate.com/leon_h_wolf/2016/09/22/nra-strongly-condemn-trumps-stop-frisk-comments/