Check out the blog Dept.of Homeland Security launched earlier this month. The Leadership Journal, solely authored (at the moment) by Homeland Security Secretary Michael Chertfoff, doesn't have many posts yet. But, it looks like he'll be a regular poster.

From the inaugural post . . .

"What This Journal Is Not

This Journal is not to be used to report criminal activity. If you have information for law enforcement, please contact your local police or FBI office or submit a tip to the FBI online.
Do not send in questions or status inquiries about your specific immigration or citizenship case or questions about your passport or visa. Contact USCIS directly regarding citizenship, and the State Department regarding international travel.

This is a thought journal, not a substitute channel for services or general questions. See "Contact Us" on www.dhs.gov, to get help from the Department and components.

Reporter questions will not be posted. Reporters should contact the Press Office through their normal channels."