Mercury

Mercury is already a known neurotoxin that causes cancer, damages DNA, alters proper embryonic development, and disrupts the immune system, but researchers at the University of Brazil recently released a study showing that mercury also causes serious brain damage, and is linked to autism and other developmental diseases in children and Alzheimer's disease in adults (http://www.naturalnews.com/031870_f ...).

(‎'Recently Released Study' as in, there are tons of previous studies to back this information up.)

Hopefully this will come more to light, if they let it.

http://www.naturalnews.com/032434_mercury_vaccines.html