"Only passengers heading to North America from Frankfurt will be encouraged to walk through a full-body x-ray scan, due to the higher safety requirements for this destination, explained police.
European Union rules stipulate that passengers cannot be forced to walk through the machines, which faced fierce opposition from privacy campaigners, particularly in Germany. Opponents said the scanners showed the passenger nude."
Looks like opt-out is permitted, meaning Germany follows EU law, unlike the scumbags "in charge" of DfT in the UK.
It's a real shame Germany chose to deploy these disgusting devices.
At least I already know how to say "Nein, danke."