On a drizzly Thursday in October 2020, I arrive at Berlin Brandenburg International Airport’s Terminal 1, a gleaming glass box on the outskirts of the city. After checking my passport and scanning a QR code, a staffer hands me a bright safety vest, a face mask with the airport logo on it, and a packet of instructions. I’ve been assigned to Delta Group. Code name: Keranova Steiner. Bag allowance: One. Destination: KUT. KUT? Surreptitiously, I check my phone. Apparently my destination is Kutaisi, the third largest city in the former…