TangoUniform
It's selective screening which is arguably pointless if there is no profiling done. In TLV the 'chat' you have prior to check in dictates how relaxed or invasive the security process will be but a selective system is not very robust if there is no methodology behind who gets selected.
I myself have never been searched at the gate on a US flight as a passenger out of DXB. Luck of the draw perhaps?