Not true. First, of course, the EPA has nothing to do with breast implants. You mean the FDA. The FDA was only given authority to regulate medical devices when silicone breast implants were already in use. In view of health concerns the FDA required manufacturers to provide safety information on both silicone and saline breast implants. This would of course be necessary for any new drug or implantable device. Two manufacturers performed the necessary studies for saline implants, but no manufacturer has for silicone. Silicone implants are available as an 'investigational new device' for post-mastectomy reconstructive surgery. You are correct that there is no evidence of adverse systemic reactions to silicone implants. However, as there is no medical benefit to implants, the onus is one the manufacturer to prove safety. Read all about it.