Leading business and union groups announced agreement Thursday on principles to guide talks on immigration legislation, but they failed to resolve some of their most contentious disputes.

Breakthrough agreement would create a new federal bureau to track visas granted to foreign, and often low-skilled, workers.

The AFL-CIO and Chamber of Commerce on Thursday released a set of immigration reform principles, and the press is calling it a breakthrough. But don't be fooled. The real story is that the backroom talks failed, and Big Labor is still holding out for a political commission to run any new guest-worker program.

Growers Press for Immigration Bill to Ensure a Steady Flow of Migrant Workers

There's a different sort of drought plaguing California, the nation's largest farm state. It's $38 billion agricultural sector is facing a scarcity of labor. "This year is the worst it's been, ever," said Craig Underwood, who farms everything from strawberries to lemons to peppers, carrots, and turnips in Ventura County.