but abrams ss he's noticed indivial investors are now buying "build amica bonds" for their i.r.a. accounts. this shelters the income fm taxes, while proding some stability in portfios burned stock market losses. >> jeff: some muni waters see the tax-fr status of municipal bonds as anoer long-term posive. they say if fedel income tax rates climb, more inveors will want to buy munias a way to help keep some income tax free. >> susie: tomoow, top political econist c. fred bergsten joi us for a eview of thiweek's g-8 summit in italy. >> susie: thglobal advertising market is expected thit bottom later this year, accorng to a key advertising recaster. "zenith optimedia" cutts global ad spendingstimates for 2009 as companiecontinued to cut vertising spending in the first half. thfirm says the second quarter saw some improment, and predictshe ad market in the u.s. and europe wi recover in 2011. >> jef the obama administrati said today it's confident general moto will emerge from nkruptcy by the end of the month yesterday, a fedal judge gave the automaker the ahead to sell its assets to a