The countries that used the U.S.'s new immigration bill to ease visa rules

The government of South Korea hired a former C.I.A. analyst, two White House veterans and a team of ex-Congressional staff members to help secure a few paragraphs in the giant immigration bill.

The government of Ireland, during St. Patrick’s Day festivities, appealed directly to President Obama and Congressional leaders for special treatment. And the government of Poland squeezed Vice President Joseph R. Biden Jr. and top lawmakers on Capitol Hill for its own favor, a pitch repeated at an embassy party last week featuring pirogi and three types of Polish ham.

Those countries, and others, succeeded in winning provisions in the fine print of the 867-page immigration bill now before Congress that give their citizens benefits not extended to most other foreigners.