Vaccines are dangerous?

Blog post: Dr. Nancy Padian Study Proves HIV Is Not Sexually Transmitted

I know that this sort of thing runs rampant through the interweb.  This is part of what amazes me.  Also, that the guy wrote a book on this subject. Its a necessary evil, I guess, of the WWW. If you weren't at all scared about the potential abuses of scientific information in an ever-nonscientific world, this should scare you.