Some More Birther Nonsense
Lubos has picked up on some of the latest birther nonsense - the notion that Obama's Social Security number had originally belonged to someone else and that the the SSN he uses was only given to Connecticut residents. Both claims are false, though it is a bit curious that he has a Social Security number usually associated with Connecticut zip codes. Snopes has the gory details, including a plausible explanation for the leading digits of his SSN.
More to the point, there would be no obvious point in his getting, much less using, a fraudulent SSN. SSN are not restricted to US citizens - I would bet that Lumo and Wolfgang probably have them, as they have both worked in the US IIRC.
UPDATE: Lumo's commentators have also given relatively comprehensive explanations.