CANCUN, Mexico - With Mexican President Vicente Fox at his side, President Bush gave Congress a long-distance push Thursday to open the United States to immigrant workers who have been sneaking across the borders to fill low-paying jobs. "We don't want people sneaking into our country that are going to do jobs that Americans won't do," Bush said at the end of a private meeting with Fox, where the issue was on top of the agenda. "We want them coming in in an orderly way, which will take pressure off both our borders." The meeting between the Mexican and U.S....