Privacy advocates are pushing back against arguments from the intelligence community that more surveillance powers would have prevented the deadly Paris terrorist attacks. They're offended at what they see as naked opportunism from supporters of tough surveillance powers and argue the rhetoric - including suggestions that National Security Agency leaker Edward Snowden has blood on his hands - has gone too far.

This article explains a way that credit card information is stored safely without encryption. Tokenization is a completely different way of securing credit card information than encryption because it completely removes the credit card information and replaces it with a "token" that cannot be retraced to retrieve the credit card information. Encryption has the credit card information hidden somewhere, but tokenization erases it completely which makes it very secure.

More and more schools are installing security cameras in halls, classrooms and buses. Administrators say it helps protect students and staff, but some argue the practice is invasive. Guests discuss the use of surveillance cameras in schools and where to draw the line between safety and privacy.

How have humans protected their secret messages through history? What has changed today?

The St. Louis Cardinals are being investigated by the FBI for allegedly hacking into networks and trying to steal information about the Houston Astros, The New York Times reported Tuesday.