CNN: A protest by campaigners opposed to the expansion of London’s main airport and luggage delivery delays have overshadowed the long-awaited opening of Heathrow’s Terminal 5. Protesters opposed to airport expansion make their views known in the new terminal. A sophisticated luggage system at T5, which finally welcomed its first passengers Thursday after nearly two decades and $8.6 billion, was designed to handle 12,000 bags an hour, dramatically improving the luggage performance …