Illegal immigrants captured on U.S. borders down 23 percent in nine months . Last month , opponents effectively killed President Bush 's long-fought and emotion-laden immigration bill in the Senate when members voted against advancing the legislation . The number of illegal aliens apprehended by the Border Patrol fell to a record low last month as more than 50,000 people were caught trying to cross into Mexico illegally, according to figures released Thursday by Immigration and Official : Use of National Guard troops along Southwest border may be a factor .
Illegal immigrants captured on U.S. borders down 23 percent in nine months . The number of illegal aliens apprehended by the Border Patrol fell to a record low last month as more than 50,000 people were caught trying to cross into Mexico illegally, according to figures released Thursday by Immigration and Official : Use of National Guard troops along Southwest border may be a factor .