06/20/2010 05:12 am ET | Updated May 25, 2011

'Cyberwar': Richard Clarke On Why The Google Hacking Is A Sign Of Future Threats (VIDEO)

After news this morning that Google was hacked and that the Chinese government was possibly behind it, the threat of cyber attacks has become more salient than ever. Richard Clarke, author of the new book "Cyberwar: The Next Threat to National Security" and the first head of cyber security for the government, spoke on "Good Morning America" today about new threats facing national security. "Nations, militaries, governments are hacking" now, he said, and "militaries -- including the U.S. military -- plan to fight the next war in cyberspace."

You can read an excerpt from "Cyberwar" at the "Good Morning America" website.