Thanks goes out to Neil Williams for developing a "template" for the use of Twitter within the public sector. Mr. Williams is the head of the UK government's corporate digital channels within the Department for Business, Innovation and Skills (BIS). His "template" was published on the Cabinet Office's Digital Engagement Blog and is free to use/reuse.
The U.S. Federal government would be well served to develop a series of similar guidance documents that explain the use, risks, and value of using new technologies like Twitter. It seems that adoption is slowed when basic questions do not have ready and official answers. For instance, I can imagine a government agency not formally adopting the use of Twitter due to unknown risks. A document, such as this one from Mr. Williams, can outline risks and mitigation strategies and make it more simple for services like Twitter to be embraced by the government.
The U.S. Federal government could develop its own set of guidance and acceptable practices to help consistently answer questions and speed adoption.