Senate appropriators seek to increase modernization spending on the Navy's major accounts -- aircraft procurement and shipbuilding -- at higher levels than their House counterparts, while recommending similar spending levels for ammunition, weapons and "other" portfolios. The Senate spending legislation totals $52.4 billion for Navy and Marine Corps procurement accounts, including a $1.4 billion boost for shipbuilding and $3.5 billion addition for aircraft procurement, according to the report accompanying the Senate Appropriations Committee chairman's mark of fiscal year 2018 defense...