Dallas shooting

Black people have been on the wrong end of white hatred on the net almost since its inception

Obama's speech included a frank admission that his own efforts to tackle violence, guns and racism had come up short

Obama is squeezing in the visit to Spain before dashing home to deal with the aftermath of shooting in Dallas

It was the third straight day of widespread protests after the fatal shooting of Alton Sterling, 37, by police

SWAT officers have been deployed at the main building, local media reports

Castile, 32, was shot Wednesday after he was pulled over in Falcon Heights, near Minneapolis, for a broken tail light

The shootings revived an emotional debate over lethal use of force by police and problems of alleged racial bias

The rampage in Texas comes at a time of intense soul-searching over the use of lethal force towards African-Americans

Suspect said he wanted to kill white people, especially white cops, after US officer-involved shootings of black men