The US and UK banned laptops and tablet computers from passenger cabins on certain airlines' flights from some airports in Turkey, the Middle East and North Africa, citing terror threats.
Normally, decisions taken by American authorities and implemented by the Transportation Security Administration (TSA) are the result of specific threats identified by US intelligence agencies.
Certain groups like Al-Qaeda in the Arabian Peninsula have been trying for years to adapt to the progressive security measures put in place by the US and their allies, in particular by miniaturising explosives.
The new measures will be based on specific threats, without doubt an initiative by AQAP, one of the most advanced and sophisticated groups–in particular with regards to miniaturisation of explosive devices.
After AQAP and rebel groups in Syria drew closer together in 2014, the TSA banned devices with flat batteries, saying that passengers could be required to demonstrate that laptops and phones could be powered up before boarding planes.
The battery's housing could conceal a miniature explosive of just a few hundred grams.
These types of electronic devices contain all the component parts of an improvised explosive device (IED) except for the detonator and the actual explosives.
By adding those two missing elements, it could be possible to effectively assemble an IED, making these devices more sensitive than other electronics, he added.
If airport security have any doubt about a passenger and their baggage they can use a trace detector.
If the electronic device has been booby-trapped, there will be traces of explosive of that can be found. The wipe can be analysed in seven seconds and will warn of any explosives detected, the expert said.
In France, checked baggage is passed through an Explosive Detection System which can determine whether any explosives are present by analysing the molecules inside the bags.
If the machine estimates that there may be a threat, it alerts airport security who can take the bag aside for a more comprehensive check.
