As they awaited a vote that could end Chicago's first teachers strike in 25 years, teachers were balancing their desire to get back to class with lingering doubts and questions about a proposed contract that could mean major changes to their pay and job security.

The National Association of Manufacturers, U.S. Chamber of Commerce and National Federation of Independent Business are working to make the anti-regulatory fervor their members share an issue in the last weeks of the campaign.

A group campaigning against obesity predicts that by 2030 more than half the people in 39 states will be obese not merely overweight, but obese.