Dear U.S. Congress, There is a new terrorist threat announced on the Al-Jazeera television network that could shock American residents. Our blood banks are extremely vulnerable. Security checks and screening devices should be mandatory. We must act now before it's too late. These types of medical services house thousands of bags of blood. It takes one act of terrorism or gruesome arson to sabotage countless lives. Anyone concerned about the lives of potential victims is urged to sign with valid first and last names or last name as initials.