In the past, Iraq has filled this type of warhead with sarin a deadly nerve agent used by Japanese terrorists in 1995 to kill 12 Tokyo subway passengers and sicken thousands of others.

CENTERFORSECURITYPOLICY: Condi Rice signals the jig is up for Saddam

He might be remotely accessing the processing control systems of a cereal manufacturer to change the levels of iron and sicken and kill children innocently enjoying their food.

BBC: Security and law enforcement: the government view

The depths of evil on a world that has no religion at all may sicken you beyond anything conceived in the history of earths inhabitants.

FORBES: Gay Marriage Cases Will Bring Ideological War Between Chief Justice Roberts and Obama to the Forefront

When environmental activists claim air pollutants kill thousands of Americans each year and sicken still thousands more, their claims ring hollow when they oppose a cost-effective, environmentally friendly solution.

FORBES: The Sierra Club Fails An Environmental Consistency Test

They also contain toxic materials and are often disposed of in developing countries where they sicken local people and taint their water and environment.

FORBES: How Green Are Your Gadgets?

When it comes to using bugs as treatment, one key, of course, is finding ones that won't sicken people.

WSJ: In a Squeaky-Clean World, a Worm Might Help Fight Disease

This makes sense: in those areas with a high level of radiation, living things would tend to die or sicken and fail to reproduce.

ECONOMIST: Radiation and evolution

Swine flu could sicken one in five people this fall, and Belshe said he worries that the number of serious health complications and deaths as a result of the H1N1 virus could soar.

CNN: School: No shortage of volunteers for swine flu vaccine trials

Vaccines have saved millions of lives, and allowed parents to live without the fear that their children will sicken and die.

FORBES: The 'Baltimore Sun' Sinks Deep Into Anti-Vaccination Quicksand