Shippers are asking the White House for help in ending the three-day-old strike by longshoremen in the ports of Los Angeles and Long Beach, the nation's largest. In a letter to President Obama. Retail Industry Leaders Association (RILA) President Sandy Kennedy said "given the enormous risk posed by a prolonged shutdown of the nation’s busiest ports, we urge you to consider all options, including invoking the Taft-Hartley Act, in order to restore the critical flow of commerce. We re...