Discover one of our 28 local entrepreneurial communities »
Be the first to know as we launch in new countries and markets around the globe.
Interested in bringing MIT Technology Review to your local market?
Unsupported browser: Your browser does not meet modern web standards. See how it scores »
Jeffrey Rosen, a law professor at George Washington University, is legal affairs editor of The New Republic. Christine Rosen, a Schwartz Fellow at the New America Foundation, is a senior editor at The New Atlantis: A Journal of Technology & Society.
Messages that quickly self-destruct could enhance the privacy of online communication and make people feel freer to be spontaneous.