A routine inspection at a Texas border crossing led to a disturbing wildlife-trafficking bust of a tractor-trailer bound for Mexico. What happened? On March 5 at the World Trade Bridge in Laredo, Texas, a tractor-trailer headed into Mexico was inspected. During the stop, the driver said the vehicle contained no prohibited items, but officers instead found 39 pythons hidden in the tractor. According to U.S. Customs and Border Protection, each sn…