I just finished reading a report titled "U.S. Dept of Defense Open Technology Development roadmap" published at http://opentechdev.org/.

It says, among other things:

OSS and open source development methodologies are important to the National Security and National Interest of the
U.S. for the following reasons:

• Enhances agility of IT industries to more rapidly adapt and change to user needed capabilities.
• Strengthens the industrial base by not protecting industry from competition. Makes industry more likely to compete on ideas and execution versus product lock-in.
• Adoption recognizes a change in our position with regard to balance of trade of IT.
  
• Enables DoD to secure the infrastructure and increase security by understanding what is actually in the source code of software installed in DoD networks.
• Rapidly respond to adversary actions as well as rapid changes in the technology industrial base.

I'm glad to see more uptake of this philosophy, and glad to see it in print.