This is what I found on signing statements:
"A signing statement is a written pronouncement issued by the President of the United States upon the signing of a bill into law. They are usually printed along with the bill in United States Code Congressional and Administrative News (USCCAN)."
From Wikipedia, and the article's pretty well documented.
Libs got pissed about Bush's signing statements because he did them for just about every piece of legislation the Dems passed in Congress from 2006-2008, at least when he wasn't vetoing them.
The president CAN'T order DOJ or JAG to do whatever they want because of checks and balances. Or, he could order it, but it wouldn't stand in the Supreme Court and/or Congress has the right to investigate and take action.
The Founding Fathers were smart. Checks and balances. The Executive is not the most powerful branch of our government.
I'll take your word for it.
Still - Congress needs to repeal DADT, and soon!