U.S. needs to sell Alaska to China for $20Trill.
china don't have 30 trillion dollars. they have about 3 trillion in reserve. if push comes, i suspect they will allow china to take over taiwan... that will be worth at least 1 - 2 trillion. but then if they let china take japan, then china will give the US 30 trillion. but for alaska... it is not worth 30 trillion.