's security procedures are tighter than any other airline in the US.
With that said, your nationality, ethnicity, religion and complexity play a role in how tight security procedures for you will be - especially when you fly OUT of TLV
At the end of the day, they are professionals. Be respectful and cooperative and answer all their questions truthfully.
I fly to and from TLV
about 6 to 10 times a year. I do 99% of my flying on CO
... I tried DL
twice.... not a fan. Security is always tight but they're very professionals
Enjoy your flights and be safe..