as dumb and incapacitated as Biden is, it's unlikely he leaked, but all things considered it is possible he decided to leak it in boastful fashion representative of his affinity for stellar, collasal screw-ups.
For anything over ~US$10K coming from the US I think swift is the cheapest option.
Unless something has changed, I do not believe there is a limit on how much you can receive in your Thai account. My US bank limits my online swift transfers out to US$100K per day.
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