How will the US service its debt?

[Brad De Long]

>
>Current account surpluses are cool as long as the countries running the
>deficit are more or less good for the money. Do you seriously think the US
>will *ever* run the 1-2% of GDP surplus it needs just to service its foreign
>debt? What the hell are they going to export?
>

Presumably the same stuff the U.S. exported in February--$84 billion 
of it--only more so...

Brad DeLong