REUTERS/Timothy E. Walter/U.S. Navy photo/HandoutBy means of Andrea Shalal-Esa WASHINGTON (Reuters) – High U.S. Navy officials warned Congress that to any extent further delays or cuts in funding would undercut the readiness of the declining U.S. submarine fleet, which is already slated to drop by using virtually 30 percent to fifty two from 73 ships before rebounding within the 2030s. …