LOL. Sorry, don't mean to be jaded here, but you're just noticing this now because it may impact you. The fact is, this is standard procedure in Congress, has been since probably before my grandparents were born. If you can't get a bill to pass on its own, you hide it in a bigger, unrelated bill hoping it avoids detection.
Mostly, its little pork mprojects that continually add marginally to your taxes, but it hurts you none the less.
I'll make a libertarian out of you yet.