A sea wall on the outskirts of port city Kesennuma. Some residents feel high walls are too expensive and destroy scenery, wildlife and popular beaches. The government has proposed sea walls that will stretch for more than 200 miles and be 30-feet high in some places. Lucy Craft for NPR hide caption itoggle caption Lucy Craft for NPR Parallels - World News In Tsunami's Wake, Fierce Debate Over Japan's 'Great Wall' The government wants to build sea walls in northeastern Japan that will stretch for more than 200 miles and be 30-feet high in places. Some say the cost is too high and it will ruin the beaches.