The Navy's classified amphibious warship study supports the need for 31 L-class ships, according to Senate Armed Services seapower subcommittee chairman, who said he is "mystified" by the lack of amphibs in the Navy’s budget request. Sen. Tim Kaine (D-VA) said Congress is awaiting the Navy’s 30-year shipbuilding plan -- likely to arrive “in the next day or so” -- to see how the service plans to contend with low readiness rates among its amphibious warships and a fleet size...