When smart devices are always on, vulnerability may be a trade-off of convenience

HARI SREENIVASAN: The WikiLeaks release earlier this week showed the CIA could use hacking tools to break into cell phones, computers and Internet-connected televisions. We should say there is no evidence the CIA used this against Americans. But the revelations surprised many. It raises the concerns for the increasing number of Internet-connected devices all around us, and what they're monitoring and who has access to it. In fact, in a recent murder case, law enforcement is trying to gather recordings from an Amazon Echo in order to see if it might have picked up evidence surrounding the crime.