If it is PR then it seems a bit odd. I suspect most people would care way more about them busting an SMS spam farm than protecting the communications of people at the UN. Maybe it has a specific intended audience, but protecting a UN meeting they're hosting is kinda assumed so I'm not sure who would give them much credit here.
Maybe building a case to send military assets into New York? Breaking up an alleged international spy ring threatening diplomatic meetings could be grounds to deploy types of forces not normally allowed otherwise...