The EU already allowed keeping your shoes on in 2016. It's up to each individual airport / authority to decide if they want to invest in a more convenient scree

The EU already allowed keeping your shoes on in 2016. It's up to each individual airport / authority to decide if they want to invest in a more convenient screening process. Metal belt buckles probably trigger false alarms in every screening device in existence. Even metal buttons and zippers may do that if the device is sensitive enough (such as those at SFO).