US GDP in 2012 was $15.68 trillion. You're saying the US government gave away more than a year's worth of productive output? You'll excuse me if I say citation fucking needed.
http://www.forbes.com/sites/traceygreenstein/2011/09/20/the-...
It all gets paid back with interest, though. None of this is anything new.
To make it even more obviously a gift, a good bit of it was used to buy treasuries. If I loan you $100 at 0% interest, and you loan it back to me for $5 a day, aren't I just giving you $5 a day?