UA901 left from A63 today. I came in from BLR, so I had to clear security twice, while never having left a secure area! I arrived at B, walked over to the IFL (I know, the FRA ILF sucks, but it is quiet) and had to clear the famous B to C security line where they strip search you, beat you, make you stand on your head while whistling Dixie. Seriously, that is the tightest security I have experienced anywhere in the world. Then, before the flight, I hike back over to A63 and had to clear security yet again.

In most other sane airports, transiting from one INTL flight to another requires no security checks. In FRA, it takes 2 of them, 1 of which is quite thorough!