Reports of CIA related planes have been denied by the Finnish Civil Aviation Authority today. The quoted media instance of a US Hercules landing on 16th May 2003 was refuted as:

a) It was manifested as carrying freight
b) It does not belong to the list of planes seen elsewhere

I would also add a personal observation that it is a huge plane - hardly the thing for flying around a handful of prisoners (though that's what they may want us to think!)

news report in Finnish for yr files:

http://www.iltasanomat.fi/uutiset/sahkeet/Ilmailulaitos%3A+CIA%3An+Suomen%2Dlennoista+ei+ole+n%E4ytt %F6%E4/1087358

You can't be me, I'm taken