Unfortunately yes-it is the latest attempt by the aviation security folks to make us feel more secure when we fly. As of January 1 all checked luggage must be screened and at many of the airports, the screening machines are "behind the scenes". Your luggage will be put thru the machine and if a suspcious item appears, security will need to open your bag to inspect the contents. If the bag is locked, it will be forced open. Bags that are opened will have a notice inserted saying that your bag was inspected and then it will be resealed with some sort of special tag. Since the bag's owner will not be present, bags cannot be locked. If aviation security does have to force your bag open, they are not responsible for any damage.
This of course leads to the question of who is responsible if something is missing when you get to your destination and open your bag. The security folks claim that they have video cameras, supervisors, etc. to monitor all this. Most of the concerns raised so far have more to do with the airlines' baggage handlers having access to unlocked bags. Since this has just gone into effect, it is too soon for the feedback/fallout from the flying public on this new system.
There have been several articlesabout how to best pack your bag to protect the contents if it is opened and how to secure your suitcase so that it cannot be opened quickly by someone looking to steal, but can be opened by security without damaging the suitcase.
Needless to point out-there are a lot of unhappy passengers about this policy.