Wait until terrorists work out how to do what Isreal did.
Could be that snail mail and horse and cart make a resurgence.
It's how Oct 7 attacks were planned and kept secret...no electronic chatter, only personal contact, kept Israel in the dark.
Meetings in barns at midnight in the Christian West, black horses, black clothing, blackened faces...naturally black faces a bonus.
Immigrants from Africa in my previous area of residence, looked cool in their all black attire, but at dusk and nightfall were virtually invisible as pedestrians.