How Pearl Harbor, 9/11 changed U.S. forever

Ten years ago this week, the United States was taken by surprise and attacked on its own soil on 9/11 -- but it wasn't the first time. This December 7, it will be 70 years ago that Pearl Harbor was bombed unexpectedly by Japan and, as on 9/11 - thousands of Americans were killed.

Special section: 9/11 10 years later

"The Early Show" relived both days through the eyes of two men: Charlie Wolf, whose wife was on the 97th floor of Tower 1 of the World Trade Center, and Milton Mapau, who was on a U.S. military vessel in Pearl Harbor when Japanese planes began raining bombs on U.S. ships.

See how these pivotal days affected each man's personal sense of security, as well as the nation's, in the video above.