Michael Chertoff announced today that nearly all airline passengers (one wonders if he also means small craft), will be required to carry passports in order to enter the US, beginning January 23. Previously, Canadians, Bermudans, and some Mexicans did not have to show this form of ID.

Here is the AP report:

http://news.yahoo.com/s/ap/20061122/ap_on_go_ot/passports_air_travel