> every other sign in that airport reads "death for drug traffickers"
Yeah, a few signs and only a light touch of enforcement. Coming in you show your passport, glance at the sign, and walk straight out. Done. On return, you show your passport, and a quick shoes-on bag screening at the gate. Queuing is rare and short.
Compare that to USA airports where you queue for hours, get 20 questions at immigration (admittedly by cheerful and well mannered staff), and go through more queues. On return you queue for hours, take various random items of clothing off, get irradiated, and generally pushed around and looked at suspiciously.
Yeah, I'll take the signs.