The New York Times has a article by By Jeremy Kirk that Heathrow airport is starting to affix radio chips to the luggage of passengers as part of an experiment aimed at reducing lost bags.
The six-month trial will involve tagging around 50,000 bags a month with RFID (radio frequency identification tags) for passengers traveling or transferring on Emirates Airline between Dubai and Heathrow, said BAA, the company that runs the airport.
I have traveled through Heathrow 2 times in the last 5 years and my baggage was misplaced both times. Both times I traveled Emirates from London . Emirates is a wonderful airline and they delivered the luggage to me the next day at 2 a.m but I still love them.
I hope this trial is successful and it gets implemented by all airlines and they also provide a way for you to track your baggage online and maybe be able to say -"Wow My Bag went to Indiana instead of India" :)
I like Emirates also because this is what they give kids and also seem to have a crew member who takes care of parents with kids