Actually, the gun running operation that was established under the Bush Administration involved placing RFID chip on the weapons so they could be tracked by satellite so Mexican LEA officers could locate them and seize them. However, word slipped out through a leak and the bad guys found out about it and began removing the RFID chips. When that was discovered, the Bush Admin. immediately discontinued the program. Under Fast and Furious, no attempt was made at all to track the weapons.