The U.K. has relaxed liquid restrictions for carry-on bags at some airports, like Edinburgh, due to advanced CT scanners facilitating better detection of explosives. This development raises questions about whether the U.S. will follow suit, especially as the TSA shifts its policies regarding other security checks. However, many U.S. airports lack the necessary technology, as only 255 out of 432 airports are equipped with CT scanners. The transition to these larger machines requires additional infrastructure changes, meaning existing liquid restrictions may remain in place for some time.
The issue is the same reason that not every U.K. airport has done what Edinburgh Airport has: while some airports have CT scanners on hand, not all of them do.
Unfortunately, as Funk reports, there are 432 airports in the U.S. that require such scanners; only 255 of them have this technology installed as of now.
The '3-1-1 rule' is likely to stick around for a little while longer.
Just buying new scanners is only part of the solution. CT scanners are larger than the machines they would be replacing.
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