【单选题】

In a country that defines itself" by ideals, not by shared blood, who should be allowed to work and live here In the wake of the Sept. 11 attacks these questions have never seemed more pressing.

OnDeC、11, 2001, as part of the effort to increase homeland security, federal and local authorities in 14 states staged " Operation Safe Travel"—raids on airports to arrest employees with false identification. In Salt LakeCity there were 69 arrests.But those captured were anything but terrorists, most of them illegal immigrants fromCentral or SouthAmerican.Authorities said the undocumented worker’s illegal status made them open to blank mall by terrorists. Many immigrants in Salt LakeCity were angered by the arrests and said they felt as if they were being treated like disposable goods. MayorAnderson said those feelings were justified to a certain extent. "We’re saying we want you to work in these places. We’re going to look the other way in terms of what our laws are, and then when it’s convenient for us, or when we can try to make a point in terms of national security, especially after Sept. 11, then you’re disposable. There are whole families being uprooted for all of the wrong reasons. "Anderson saiD、
If Sept. 11 had never happened, the airport workers would not have been arrested and could have gone on quietly living inAmerica, probably indefinitely.AnaCastro, a manager at aBen & Jerry’s ice cream shop at the airport, had been working 10 years with the same false Social Security card when she was arrested in theDecember airport raiD、 Now she and her family are living under the threat of deportation.Castro’s case is currently waiting to be settleD、 While she awaits the outcome, the government has granted her permission to work here and she has returned to her job atBen & Jerry’s.
Undocumented workers became the target of "Operation Safe Travel" because ______.
A、evidence was found that they were potential terrorists
B、most of them worked at airports under threat of terrorists
C、terrorists might take advantage of their illegal status
D、they were reportedly helping hide terrorists around the airport