If you would like to see the webcast it is available as video and/or audio on the Berkman website.
If you don't have the time or inclination to view the whole webcast, here's one important tip Mr. Soghoian gave to anyone who uses Google's gmail: Go into your Gmail account. Click on "Settings". Scroll down to the bottom of the page. In the box that says "Browser connection" click "Always use https" ; https is a secure protocol that provides authenticated and encrypted communication.
Mr. Soghoian argued that Google should automatically make all Gmail secure, but that they don't because it's expensive for them to do so.