https://cdn.pixabay.com/photo/2018/03/20/06/33/palms-3242342_960_720.jpgHOUSTON (AP) — It had been just One more regime day of inspecting shipping containers for the Port of Houston for U.S. Coast Guard officer Ryan McMahon when he and his group imagined they heard barking coming from inside one of many thousands of containers that surrounded the