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First of all, you are not going to get a change in USA law to cause the bitcoin that it already holds to either become unencumbered or any claims against them to be resolved right away (by executive order or even by congress) since there are due process and property rights clauses in the constitution.
Second, that proposed legislation is not even close to being passed, so you seem to be living in a fantasy if you believe that the US government is going to start buying BTC in order to reach some kind of a "strategic reserve target." Let the proposed legislation pass and the president sign it first, before you start getting all excited about something that merely has been proposed and it has to get through the senate, house and then past the president's desk.. and then what kinds of dates does it have to become effective (does supposed fantasy law describe if the coin acquisition would be overt or covert or both?).
Don't get me wrong, I am finding it quite interesting and perhaps also bullish that several of the talking points about bitcoin (and crypto) has changed in the past several months.. yet it still could take a bit of time before actual friendly legislation goes through, even assuming either legislation or executive actions might end up continuing to progress.
Ok so if I understand you correctly here, the government could not secretly amass a high amount of BTC without letting the public know or without going through congress? I mean there have been countless of things and measures that have been executed and when the public only found out decades later. I am not so much convinced that the government or an agency close to the government would push the price by passing a bill that 1,000,000 BTC should be bought. That would be stupid. I'd rather assume they have already done it for years and years while sticking to the law that confiscated BTC have to be treated differently. Again my question: is it possible that the US government (or an agency close to it) is already sitting on a million BTC? Or whatever amount, but a significant one?
In my opinion BTC is of such a high geostrategic relevance that I would not find it reasonable to inform the whole world about it when purchases are being made.