Meaning what?  My proposal should be very enticing to the government as it gives them an immediate windfall of 1/4 of the currency.  What do they get by endorsing Bitcoin instead?  Basically nothing.  Unless Satoshi was the NSA ...

Actually, even if Satoshi *was* the NSA, why not 're-set' the currency and give themselves even more while they still can?  Once they distribute 1/2 of the currency to everyone in the USA, they can't take it back anymore, like they can't just start printing red dollars now and declare all of the green ones obsolete, without risking revolution ... once the currency is sufficiently spread around, they can't take it back.  The could take Bitcoin back now, given that it's a) not officially endorsed as a currency anyway, and b) only used by a niche of people.  But give some of the currency to everyone ... then it can never be taken away again (except by the usual means - taxes )