I understand the logic behind comparing the Web 2.0 attitudes in the private sector workplace to the public sector. But information managers who want to just cut and paste the private sector's policies into the government's workplace risk cutting off a valuable tool.
In the profit seeking world, companies must protect their competitive advantages. they can't have employees going around sending best practices to their competitors via Twitter, Facebook, etc. But in the non-profit world, especially in the federal government, many employees learn by copying best practices that work well at another agency.
The federal budget represents the world's 4th largest economy, after Japan, before India. So federal resource managers need all the best practices they can get.