Tonight President Bush will do what no President have done in recent history of the US, send troops to the border to secure it.
I don't know where you are getting your news, but reports and articles are saying that the NG will not be arresting aliens and that the NG will be temporary.
Bush even talked with Vicenta Fox to re-assure him that the NG deployment will only be temporary.
He may be the first to send NG to the border. But lets wait and see what those troops do.