NEW: $45 million worth of cocaine seized after an underground tunnel between Mexico and San Diego, CA was discovered under a Buy 4 Less store. Investigators say they surveilled the store for months after noticing how little customer foot traffic it had.Authorities found a nearly 2000-foot-long tunnel that was 55 feet deep and 4.5 feet high with electricity and ventilation. 2270 pounds of coke was seized from the store, and four people were arrested.Gregorio Epifanio Hernandez Lopez, 29, Jose Jim