I’m sure the gatecrashers were as thoroughly wanded and bomb-sniffed as every other attendee. What would be hilarious, and at the same time, infuriating, would be if the crashers turned out to be minorities or members of the ROP and the USSS didn’t push the issue out of political correctness.
If they meant harm it would be trivial for them to have a small wooden pipe and a couple of small poisoned darts. Michaele could have even stuck the darts into her dress and nobody would understand what they are. No metal or bomb detector can detect those. They were within feet from the Indian PM. It was a huge security lapse.