A draft defense authorizing act in Congress includes wording plugging open source software. It seems both cost and software security were considerations. This is an important victory for open source. "It's rare to see a concept as technical as open-source software in a federal funding bill. But the House's proposed National Defense Authorization Act for Fiscal Year 2009 (H.R. 5658) includes language that calls for military services to consider open-source software when procuring manned or unmanned aerial vehicles."