After mass shootings, Google told Congress his arrest was progress. But the truth is complicated.

""The technology that flags these things doesn't know the truth," said Jennifer Granick, surveillance and cybersecurity counsel at the ACLU Speech, Privacy, and Technology Project. "Whether someone goes to jail or is put in a mental health facility, that takes a level of review and sensitivity far more than something that reviews a billion posts can actually accomplish."

"Whenever you decide to make judgments about what people are saying, whether you don't understand the context or you don't understand the motivation, there's always going to be mistakes," Granick continued. "You don't have all the information, you can't have all the information, but that means that sometimes people are going to get either kicked off of the platform or arrested when ultimately they're not really guilty.""