Sept 10 (Reuters) - The following were the top stories in The Wall Street Journal on Wednesday. Reuters has not verified these stories and does not vouch for their accuracy.
* Senator John McCain's choice of running mate has shaken up the race, boosting the ticket's appeal with women, rural voters and Southerners. A new Wall Street Journal/NBC poll finds a dead heat: 46 percent for Senator Barack Obama to 45 percent for McCain.
* Billionaire investor Warren Buffett's Berkshire Hathaway Inc (BRKa.N) told a subsidiary to stop insuring deposits above the amount guaranteed by the Federal Deposit Insurance Corp, in a setback for the banking sector.
* The Congressional Budget Office said the fiscal 2008 U.S. budget deficit will be more than double the 2007 figure.
* Retailers have turned to computer programs that dictate which employees should work when, and for how long.
* Research in Motion Ltd RIM.TO unveiled a flip version of its Pearl BlackBerry in a move to increase its U.S. market share.
* Lehman Brothers Holdings Inc LEH.N came under pressure after hopes faded for an investment deal with a Korean bank. Lehman's shares tumbled 45 percent, roiling markets.
* The U.S. is putting off plans for a virtual fence being built by Boeing Co (BA.N) along the Mexico border and instead will focus on a physical fence.
* Deutsche Post AG (DPWGn.DE) could reach a deal to sell its multibillion-euro stake in its Postbank unit as early as this week.
* Standard & Poor's will remove Fannie Mae FNM.N and Freddie Mac FRE.N from its S&P 500 Index after the close of trading Wednesday.
* Two U.S. senators accused the Department of Labor of violating the "spirit and goals" of a law aimed at protecting whistleblowers.