I got a 6 recently flying through TLV but wasn't taken to the basement. But the interrogation was pretty heavy. Single white British male in my 20s. Was scary as .... to say the least. I will say at the end they walked me to the front of the check-in desk, and to the front of the security desk so time wise I'm pretty sure it all balanced out. They were very professional at all times. Not like when one goes through CBP in the U.S.