CBS is setting aside two hours of prime time next month for a presidential candidates' town hall meeting. One problem: so far, only one of the candidates has agreed to the event. The NYTimes' Kate Zernike reports that Sen. John McCain has agreed to the town hall meeting at the Expo Center in Belton, TX,about 25 miles from Ft. Hood.

Zernike reports that CBS has agreed to broadcast the event live from 9pm to 11pmET Monday, Aug. 11.

Phillip Carter, director of Sen. Barack Obama's veterans effort tells Zernike, "While we unfortunately had a previously scheduled commitment on the date proposed, Senator Obama looks forward to continuing the dialogue he's been having throughout the country with veterans on how we can better serve our men and women in uniform as they serve us."

The questions would come directly from service members, their families and veterans. It's not known if a CBS News anchor or correspondent would participate as a moderator.

Last month, Fox News Channel provided the production for and broadcast a town hall meeting in New York City that was only attended by candidate McCain.