when you say : I don't think that the US government will let that happen.
do you know what you say in deep....there is inifinty supply of dollars which mean the value of the dollar will go down with time and the price in supermarkets ,cars,houses and other things go up only.. its like to fuel car with hole....ask any smart economist everything is depend on the max supply, if there is to much supply or infinity supply the price only will go down and while it go down the price of clothes,cars,houses and other go up which lead to bad place....
the governments print huge amount of money but hey there is another problem
smart criminals know to fake any paper money ONE ON ONE and basically make money from thin AIR...
do you know how much money faked by smart criminals on a daily basis only inside the usa,,, hell you will fall, and they fake it one on one ...