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Senators work through changes to immigration bill

Erica Werner, Associated Press

U.S. Sen. Orrin Hatch addresses the Utah Republican Party's annual organizing convention Saturday, May 18, 2013, in Sandy, Utah. Hatch says staffers at the Internal Revenue Service, which recently apologized for unfairly targeting tea party groups, "are either deliberately incompetent or they are evil." Hatch mentioned the IRS scandal while addressing thousands of fellow Republicans in Sandy on Saturday for the state party's annual organizing convention. Hatch says the IRS scandal is more concerning than almost anything else he's seen in the 36 years he's been in the U.S. Senate. (AP Photo/Rick Bowmer)

WASHINGTON (AP) -- Senators working on a wide-ranging immigration bill have agreed to tighten controls on the asylum system that allows people fleeing war or persecution to find refuge in the U.S.

Republican Sen. Lindsey Graham of South Carolina offered the amendment, which would terminate asylum or refugee status for anyone who returns home to the country they fled, unless they can show a good reason for doing so.

Graham said the change was merited in light of the Boston Marathon bombings. The brothers who allegedly set off the bombs arrived in the U.S. as boys when their family sought asylum here.

The amendment was approved on voice vote Monday as the Senate Judiciary Committee entered its third week of weighing amendments to a bipartisan immigration bill.