U.S. said to investigate AT&T, Verizon over wireless collusion claim - source

The U.S. has opened a probe into alleged coordination by AT&T Inc , Verizon Communicationsand a telecommunications standards organisation to hinder consumers from easily switching wireless carriers, a person briefed on the matter said on Friday.Verizon and AT&T acknowledged the government probe and said they were working with regulators.Verizon called it "much ado about nothing," adding that it has been working with the Justice Department for several months "regarding the inquiry," accor