We recently had two separate stays at the Manila Marriott, and were indeed initially surprised at the intense security upon arrival... barricaded entrance, sniffing dogs, mirrors on posts to look under our taxi, as well as guards with automatic weapons. And all luggage gets X-rayed before entering the hotel and people through metal detectors.

I have no objection to this heightened security, and I assume that the there is a good reason to have it. I was wondering what other properties have this heavy security... I assume that most middle eastern destinations will have this. I have stayed at several Hong Kong Marriott properties, and there was no security at those locations.