As comprehensive immigration reform winds its way through Congress, The Center for Investigative Reporting is releasing finding from its deep look into which drugs are crossing the 2,000-mile border that separates the United States from Mexico.
CIR analyzed the 128,169 seizures made from January 2005 to early October 2011 by the U.S. Border Patrol at checkpoints and other spots near the border and by U.S. Customs and Border Protection at ports of entry. Here's what they found: