I bought a few bottles of wine at the duty-free shop at TLV. They were sealed with a visible receipt in a transparent security tamper-evident bag (STEB). At JFK, the TSA screener cut the bag open and put each bottle through a bottled liquids scanner. The analysis of each bottle took approximately a minute. He then placed the bottles back in the bag and sealed it with a tape marked with "Transportation Security Administration INSPECTED."

At the register next to mine at the duty-free store, I overhead a supervisor cautioning another customer not to buy the alcohol bottles that he wanted; apparently, those bottles were made of dark colored glass which does not let the scanner analyze the liquid contents. I am not sure, but I think that the supervisor came over after the cashier refused to place those bottles in a tamper-evident bag.