David Sanger, chief Washington correspondent at the New York Times, and the author of (now in paperback) Confront and Conceal: Obama's Secret Wars and Surprising Use of American Power (Broadway, 2013) talks about the use of cyberattacks in the conflict with Iran.

Excerpt: David Sanger's Confront and Conceal

Excerpted from Confront and Conceal by David E. Sanger. Copyright ©. Sanger. Excerpted by permission of Broadway, a division of Random House, Inc.