I hate changing Ames but was persuaded that Lufthansa can make it work. We arrived at Frankfurt with just 40 mins to spare. The route from terminal B to A was endless, a nice guy let us join the business security line as we had so little time. But the security staff were a disaster. Apparently they were training new employees but they were so slow, so unhelpful and generally disorganised. We were kept waiting ages behind passengers who had no clue, every bag had to be checked as they had not taken out liquids.electronics or food. Then another endless route march to our gate. The most stressful and frustrating transfer. Never again. And I am now seeking an alternative way home, I can't do that again. We are no longer young, it is too much!