ABC News’ John Stossel will either moderate or be the keynote speaker at health-care town hall meetings in Wisconsin, sponsored by Americans for Prosperity, an organization that is advocating against the public option in health care.

The organization’s Patients First Web site claims that the public option is a “back door to a total Washington takeover” and implies that the government would decide if “our grandparents are too old or too sick to receive the life-saving care they need.”

Americans for Prosperity has used the Internet to reach members and encourage them to speak out at town hall meetings held by legislators. See the stops scheduled on its bus tour.