Det beror delvis på 2006-transatlantiska flygplanet , en plan för att använda sprängämnen förklädd som läskedrycker för att få ner en serie flygplan. När det gäller hur de valde 3 oz. 1-liters påseregel:
In an interview, Mr. Hawley explained that security officials in the United States, Britain and elsewhere quickly determined that the liquids explosion plot was “chillingly real.”
In August 2006, the thwarted terrorists were planning to use “a formulation that was specifically put together to get around our screening measures,”
...
Tests showed that a container of a certain size is needed for an effective explosion. Separate three-ounce containers limited in number to what will fit inside a single one-quart bag do not have “enough critical diameter” to blow up an aircraft, he said.
Det här liknar varför du också nu behöver sätta dina skor genom röntgenmaskinen .