Last time I checked, Puerto Rico was still a US territory. However, the Western Hemisphere Travel Initiative could be interpreted as meaning that US national traveling to or from the mainland to the island will need a passport. And doubtless, some TSA person will interpret it that way. Is there any clear guidance as to whether and when travel to SJU will require a passport? There's a January 1st requirement and a January 23rd requirement. I think that if travel is completed before 1/23/07, the travellers should be able to get by with a photo ID and (at most) a birth certificate. Anyone have some insight into this?

And yes, I do have a passport, but I'm not sure if all my meeting attendees will have one.