He did say that terrorism is linked to global warming, though I can understand the reasoning behind it as dwindling resources, and various powers striving for control over limited resources linked to global warming, does have a tendency to cause an increase in strife and attempts to destabilize structures that are viewed by extremists as harmful to most.

As for the vaccine-autism issue, I’ve not heard much but everything that I have seen shows that Sanders is in support of vaccinations for the purpose of public health, that he is supportive of expanding the availability of health care, and that he has voted in favor of supporting autism study and care.  The only connection that I can find regarding Bernie Sanders and the “vaccine causes autism” issue was from him correcting Donald Trump when the living troll doll said that it was true and was corrected by Ben Carson and Rand Paul