A billionaire fights meth addiction in Montana. Next time on NOW.

When Tom Siebel, a billionaire software developer and part time Montana resident, learned the devastating effect methamphetamine addiction was having on the big sky state, he decided to use his successful marketing techniques - and 20 million dollars from his own wallet - to "un-sell" the deadly and highly addictive drug. It's called the Montana Meth Project. On Friday, August 31 (check your local listings), NOW's David Brancaccio talks with the venture philanthropist about blitzing the state with stark and shocking ad campaigns designed to drag meth use out of the shadows and get into the faces of kids. The results are promising, and his idea is spreading around the country.

Also on the show, another "Enterprising Idea": a business model focusing on ethnic foods that's creating local jobs for Boston's inner city.

To complement this week's show the NOW website at www.pbs.org/now will offer access to the Montana Meth ad campaigns, statistics on methamphetamine use, and an exclusive interview with the Partnership for a Drug Free America CEO on what it takes to fight meth addiction.