Mexican cartels often pay citizens of the U.S to buy rifles and other guns and have them sell it to a cartel representative, which is known as a straw purchase. Because its very difficult to track the guns which makes it harder to find the cartels.(Stastna Kazi). Mexican cartels often pay citizens of the U.S to buy rifles and other guns and have them sell it to a cartel representative, which is known as a straw purchase. Because its very difficult to track the guns which makes it harder to find the cartels.(Stastna Kazi). Mexican cartels often pay citizens of the U.S to buy rifles and other guns and have them sell it to a cartel representative, which is known as a straw purchase. Because its very difficult to track the guns which makes it harder to find the cartels.(Stastna Kazi). Mexican cartels often pay citizens of the U.S to buy rifles and other guns and have them sell it to a cartel representative, which is known as a straw purchase. Because its very difficult to track the guns which makes it harder to find the cartels.(Stastna Kazi). Mexican cartels often pay citizens of the U.S to buy rifles and other guns and have them sell it to a cartel representative, which is known as a straw purchase. Because its very difficult to track the guns which makes it harder to find the cartels.(Stastna Kazi). Mexican cartels often pay citizens of the U.S to buy rifles and other guns and have them sell it to a cartel representative, which is known as a straw purchase. Because its very difficult to track the guns which makes it harder to find the cartels.(Stastna Kazi). Mexican cartels often pay citizens of the U.S to buy rifles and other guns and have them sell it to a cartel representative, which is known as a straw purchase. Because its very difficult to track the guns which makes it harder to find the cartels.(Stastna Kazi). Mexican cartels often pay citizens of the