The Black Lives Matter movement is lining up behind Apple in its fight with the FBI. 
In recent weeks, voices in the movement and civil rights activists such as the Rev. Jesse Jackson have met with Apple officials and filed briefs on behalf of the company, which is resisting a court order to unlock an iPhone used by one of the San Bernardino shooters. 
The groups are getting involved because they say the case touches on long-standing concerns about police brutality and the illegal surveillance of activists, going back to the days of Martin Luther King Jr.