By Chuck Mikolajczak NEW YORK (Reuters) - With Friday's U.S. payrolls report serving as a springboard to lift Wall Street stock indexes to fresh all-time highs, investors are left to contemplate whether the gains will fizzle or if the upward momentum will continue. Investors cheered the jobs report on Friday, which showed employment rose at a faster than anticipated pace an April and hiring in the prior two months was much stronger than previously thought. ...















OMAHA, Neb. (AP) — Berkshire Hathaway's first-quarter profit jumped 51 percent as its insurance companies performed well and the value of its investments soared.