By Sen. Mark Kelly (D-Ariz.)
Flanked by two oceans, the United States has always been a maritime nation. Our dominance over the oceans was a key factor in establishing the U.S. as the most powerful nation on Earth. My family has lived this. Both of my grandfathers were seafarers during World War II. One sailed on a Liberty ship in the Atlantic and the other one with the Navy in the Pacific. Their example was an inspiration to me that led me to attend the U.S. Merchant Marine Academy and join the...