Analysts and the Al Gore Keynote Policy at RSA Conference

From the organizers of the RSA Conference, a conference I hold in very high regard:

"Dear Michael:

For the last 17 years, RSA Conference keynote speakers have brought a wealth of knowledge and experience to Conference attendees. Continuing that tradition, we've recently announced that the closing keynote speaker at RSA Conference 2008 will be former Vice President Al Gore. In accordance with the agreement with Vice President Gore, members of the press will not be permitted to attend his keynote presentation.

RSA Conference offers industry analysts a free, all-inclusive press badge that provides full access to all resources, sessions and the press room while attending the show. Given that industry analysts are provided press badges, you will also be precluded from attending former Vice President Gore's keynote. Anyone with media credentials will be seated in a special press section for The Hugh Thompson Show on Friday afternoon and will be escorted out at its conclusion, prior to former Vice President Gore taking the stage. If Conference staff notices anyone with a press badge is found in the keynote room during Gore's speech, they will ask that person to leave immediately. We apologize for any inconvenience this may cause.

We are looking forward to seeing you next week."

Any theories as to why Mr. Gore doesn't want the press -- and anyone outside the live event -- to know what he will say?