Sens. Elizabeth Warren (D-MA) and Chuck Grassley (R-IA) have introduced bipartisan legislation aimed at tightening disclosure requirements for foreign ownership in Defense Department contracting, seeking to close what the lawmakers describe as persistent loopholes that allow opaque shell companies to access sensitive defense supply chains. The measure, which the senators are seeking to attach to the fiscal year 2027 defense authorization bill, would require prospective DOD contractors and subcontractors to disclose beneficial ownership information at the bid or proposal stage...