Does anyone have insight into why this is? The US seems uniquely aggressive in the way it pursues its citizens' and corporations' international earnings. Why i

Does anyone have insight into why this is? The US seems uniquely aggressive in the way it pursues its citizens' and corporations' international earnings. Why is the US the only country that does this? Is it just greedy? Does it feel more entitled to taxing those things than other countries? Is there a historical or cultural reason it ended up this way?