留美的門檻又高了，定居費(fèi)用要上漲，引發(fā)廣泛爭(zhēng)議
USCIS spokesman Chris Bentley, "We realize that anytime we increase the fees that there is a burden there, there is pain that is caused along the way. However, to be able to remain a world class service provider, to be able to get the services and benefits in a timely manner to the people who deserv…