In 2009 a bomb was found hidden in the underwearin one of the bags on the flight between Amsterdam and Detroit.
The United States then made more restriction through security procedures / with a new threat from Al Qaeda with improvised bombs and new ways.
Washington fears the appearance of bombs of a new generation on board of an aircraft or in airports. It is known to the U.S. intelligence that al-Qaeda is working on new technologies that are difficult to monitor through X-ray.
So what are these super-new bombs development and owned by the “Al-Qaeda” that raise fear to the United States? U.S. experts say that mixing chemicals quickly and naturally lead to a chemical reaction in the bomb.
Some packages will consist of non-metallic materials and are likely to be in liquid form, and trace amounts of which are enough to make a big explosion in the aircraft because of the atmospheric pressure.
Some small amount of explosives would be particularly devastating consequences if were at high altitude above the ground.
These containers can be carried materials in the flesh, but do need to be planed in large quantity of explosives by surgical procedures to get the desired result.
However, the name of Ibrahim Asiri came back to light.
In 2009 Asiri concealed explosives in women’s underwear. As he boarded a flight to Detroit in 2010. Explosives were found hidden in the ink tanks within a package.
And his most important work was implanting in the body of his brother a bomb in an attempt to assassinate the Assistant of Saudi Interior Minister
Mohammed bin Nayef was not killed in the process, only the suicide bomber.
This guys that made 15 worldwide airports afraid and on code red for a while especially now that the Americans have warned that he may be planning as a Saudi chemist new attacks after his name raised within AL Nusra Front and ISIL