Everything in the story is true, except for the article writer blindly assuming that the only place bombers were flying to/from was Britain, and so deciding that the information saying the B-17 was flying from Biskra, Algeria to bomb Tunisia must be in error, none of the rest of the world is important enough for heavy bombers to be sent to, you see.
See the account on pages 10-12 (mainly page 12, pages 10-11 establish where they were and what their missions were) here: http://books.google.com/books?id=Kj54qUKgvrgC&pg=PA16&lpg=PA16&dq=lt+kendrick+r+bragg&source=bl&ots=ln1rp73SAE&sig=-HxmVXSM3AnfaUWcJNG0ieLCLVw&hl=en&sa=X&ei=C5InUP2hMIWi8gTR44CQDg&ved=0CFcQ6AEwCQ#v=onepage&q=lt%20kendrick%20r%20bragg&f=false
Since this story has come up again, it might be worth noting that while the Bill Hess book is pretty much accurate except for things like the type of German fighter involved in the collision, the story at “Garfield’s Team House” is not.