^ I don't really, no. But just picking up in the Middle East doesn't really make a lot of sense either. You'd need to explain why he's there, just as much as you'd need to explain why he's in Eastern Europe.
All we need to know is that Jack Bauer is a former anti-terrorist agent, now on the run, who is hiding out in Eastern Europe. I don't think that's any more confusing than the backstory to, say, The Bourne Identity or Taken.