Blackout by Connie Willis.
While the premise is good (time traveling historians going back to WW2) and the plot really promising, this puppy is in desperate need of an editor...
What really pissed me off, though, is that no where on the cover is it indicated that this is only half of a bloody book. Yes - this is yet another book which has been needlessly cut in half at a random moment in the plot by the publisher, with the second half coming out in the fall. HATE HATE HATE this modern publishing trend.
And if I had known this was only half of a book, I would not have even considered reading it until both halves were available. 
In fact, I am considering boycotting all future books (with the exception of Wheel of Time, since I have already committed huge chunks of time and ten thousand or so pages to reading it) where this is done by the publisher.
). I'd seen that it had come out and then totally forgotten about it. Now I guess I'll wait 'til part 2 comes out and read them both at once. 
LOL