Trump shooter's phone and the problem of encryption

Former DOJ criminal prosecutor Alex Grant reacts to the news that the Trump attempted assassination investigation was hampered by the encryption on the shooter's phone. Alex laments that law enforcement is still dealing with this encryption issue, even after a judge issues a search warrant. This is eight years after the San Bernardino terrorist attack and a locked iPhone pitted the FBI against Apple. Alex also talks about how this was a recurring problem in serious criminal cases he investigated.