PRESS DIGEST - Wall Street Journal - June 29

June 29 (Reuters) - The following were the top stories in The Wall Street Journal on Monday. Reuters has not verified these stories and does not vouch for their accuracy.

* A look at why the U.S.'s toxic-asset program has stumbled underscores how difficult it has been to solve one of the economy's biggest problems: Mountains of bad debt sitting on banks' books.

* The latest delay to hit Boeing Co's (BA.N) 787 Dreamliner has complicated an intricate set of negotiations, giving airlines a chance to wrangle concessions from the plane maker on delivery dates, installment payments and even the final purchase price.

* General Motors Corp's GMGMQ.PK Saturn is set to be sold to a new owner later this year, but for now, GM has asked Saturn not to trumpet the Penske Automotive Group (PAG.N) connection.

* Even after a huge junk-bond rally this spring, yields are at historically lofty levels. That might make the high-yield market appear attractive, but some are urging caution.

* Two of the country's largest human-resources consulting firms, Towers Perrin Forster & Crosby and Watson Wyatt Worldwide Inc (WW.N), agreed to merge in a deal reflecting recession-induced consolidation in the consulting industry.

* Hundreds of laid-off U.K. workers got their jobs back this week after organizing mass protests at energy plants across the country, coordinated through text messages and social-networking Web sites.

* Valero Energy Corp (VLO.N), which has the capacity to process more crude than any other U.S. refiner, recently installed 33 windmills to supply a refinery with green electricity to produce gasoline and diesel.

* Twitter users have caused an uproar by impersonating celebrities on the popular micro-blogging service. Businesses, too, are targets of fake Twitter profiles -- sometimes from competitors.

* As the U.K. government prepares to announce another set of measures aimed at cushioning the impact of the recession, signs are emerging that two of the sectors worst hit by the economic downturn have stabilized and may even be about to recover.

* Volkswagen AG (VOWG.DE) said it hasn't issued an ultimatum to Porsche (PSHG_p.DE) to make a decision on planned merger talks.

* Tata Motors Ltd (TAMO.BO) on Sunday introduced the Jaguar and Land Rover luxury-car brands in India as the company tries to challenge BMW AG (BMWG.DE), Audi AG (NSUG.DE) and Daimler AG (DAIGn.DE) in this potential growth market for premium vehicles.

* The Justice Department extended its investigation into Oracle Corp's (ORCL.O) proposed acquisition of Sun Microsystems Inc (JAVA.O).