Very good find. It's starting to sound like every president in my lifetime (and before) was using warrantless wiretaps.
Carter used them too.
http://freerepublic.com/focus/f-news/1543688/posts
LBJ used that BIG TIME ... Bobby Kennedy I think holds the record on them
But the difference with RFK and Bush is .. Bush did it to track down terrorist .. Bobby Kennedy didn't to protect his brother ... and party