It should be required reading and a three day waiting period before induction is legal.
Among other things, it should state the facts involved in joining the U.S. Military:
WARNING:
You are about to sign a binding contract, binding only upon you and not the government. If the recruiter told you that you can choose where you are stationed, or that you won't be deployed in a war zone, he is lying.
You are subject to be told to go to any country the commander in chief chooses and ordered to use deadly force against people who have not attacked you or your country for any number of reasons, including the theft of that country's resources. You may be put in a position of 'kill or be killed' and end up killing innocent men, women and children. The effects on your psyche will be devastating if you are a normal human being and you will be dealing with what you have done for the rest of your life with little or no help from the government. You face a greatly increased risk of drug addiction, alcoholism and homelessness as a result of being in the military.
If you lose some of your equipment, even in combat, you will be charged for it when you are discharged.
If you are discharged, you are still subject to being recalled again later.
You face a risk of being maimed or killed. The goverment's facilities and willingness to help you are limited and insufficient to treat most veterans.
If you are a woman, you face an increased risk of being raped by fellow soldiers and there is little you will be able to do about it.
If you are maimed, the procedure for getting a disability pension is such that you will likely be homeless and begging on the streets before you get it, IF you ever get it.