This has escalated
Blogs and talk radio programs went on the attack after the story was posted on the internet and featured on the Drudge Report, a popular U.S. news website. Critics accused Pianka of saying that the Ebola virus should be used to kill most humans.
...
Pianka attributed the furor over his lecture to a rival whom he accused of attempting to smear his reputation.
The ecologist said since the report was published, he has received abusive e-mails and death threats, including one threatening his family.
I can only refer to what I posted earlier in this thread about the poisoning of political discourse in North America.