Just returned from an overseas trip. Took my film (Ilford HP5) over in hand-carry , but packed most of the exposed film in my checked baggage on the return. I noticed when developing the film that the film which had been checked was much darker on the rebate and ends, and contrast was lower. I purchased a new role when in Britain, and that was in the camera and was hand carried back. It looks just fine -- the ends clear with a light purple cast and contrast is good. Just finished making contact sheets, and they demonstrate the same issues. There are no 'wavy lines' or other stripes -- just a dark, dull foggy look. Is this problem due to X-Ray, or may it be another issue?