16 years have passed since the September 11 traumatic event that saw America under a multiple attack of civilian aircraft hijacked by suicide terrorists.
The main symbols of US force, the Pentagon and twin towers were struck by
new terrorist weapons of destruction: aircraft turned into weapons, in missiles piloted.
This revolutionary concept for the time, has made great progress to this day, now are the motor vehicles that have been turned into instruments of death, always against the innocent population. 
Almost all the world condemned the 11 September event, NATO for the first time in its organizational life, declaring the application of the 5 article of the North Atlantic Treaty to support US support for the attack soon, many , in the world, felt "Americans" affected by unheard of violence.
For the first time in the history that belongs to us, the AWACS aircraft, for the control and control of aviation operations, moved in the opposite direction from Europe to the United States, to give first aid to the defense of the American sky uncovered defense results Aerea.
After sixteen years everything seems to have been filed in the feelings of humans, even "Ground Zero" is no longer a vortex in the city of New York.
The legacy of the 11 September has been represented, for almost all countries, by a huge amount of controls at civil airports for passengers, the emergence of new intelligence coordination structures, the creation or upgrading of air surveillance.
Unfortunately, it also witnessed the spread of terrorism from Afghanistan through Iraq, Libya, Yemen and Syria, including foreign western fighters in Western countries, as well as solitary wolves.
What is still evident today is the sophisticated network of contacts, training and preparation of terrorists or rather jihadists, based on both the Western study in general and the exploitation of terrorist procedures and organizations in the main infrastructure of a country.
The preparation of the September 11 has lasted for years.
It started with the conception of a new paradigm for terrorism, the identification of the US air transport infrastructure, studied in detail to the procedures and behaviors, to be transformed into an offense to the West, without the use of explosives that can be identified .
The US security services had been subject to budget cuts after the end of the Cold War and dismantled what was considered superfluous.
Almost no one had noticed the great growth of another threat: the terrorist use of the new era of digitization: mobile phones from 1990 to 2001 increased their spread from 16 million to 741 million, Internet users increased from 4 million to 361 million, international phone traffic rose from 38 billion to 180 billion in 2002, security services did not fit the new one, intercepted the communications, that little they could intercept but translate and analyze them according to the times of the Cold War.
Everyone was ready to fight the old wars and even with the old logic, no one had been able to anticipate the preparation of the contrast to the new one that was loudly emerging
Sheikh Khalid Mohammed, Abu Zubaydah, and Mohammed Atef were the minds and instructors of operating cells for hijacking airplanes and suicide attacks.
These malignant minds, with great negative leadership, were able to recruit new maneuvers, demonstrating high selection and recruitment potential of potential pilots, instructed them to behave as spies, convinced them of suicide through mental plagiarism (the virtual that is being perceived as real) has trained both at Afghan centers and then at American Flight Schools, resulting in Visa's request to prepare them for the commander of terrorist acts of the century.
By running some risk, they then organized a test event across the scenario of the planned act, subdivided into cells and clandestine communications systems, where all involved terrorists went, observing, the same path as the established plan, with the acquisition of additional confidence in the execution of the massacre.
When all the cells reached the required level of operational efficiency, the process was started.
After the tragic event of the 11 September, all possible actions were taken to prevent and prevent events of this magnitude.
First of all, Afghanistan had been abolished, allowing Al Qaeda training.
Later, Osama bin Laden and Atiyah Abd al-Rahaman network manager, and many members of the organization, were annulled.
Also many Al Qaeda cells in franchises, but not all, were also extinguished abroad, some in Iraq turned into ISIS.
All the cells later had difficulty finding ground and terror training experts, and security systems in the then-strengthened Western countries made life very difficult for terrorist organizations.
Given the operational difficulties of being able to act in Western countries, the Jihadist leaders launched the idea of terrorist resistance without leadership leadership to attack Western countries, even through the present-day Western rule.
The terrorist attacks that took place in the West after the September 11, still grave in their brutal scope, were characterized by little preparation, poor planning and abusive execution of the criminal act.
Unfortunately, this does not mean that the current terrorist phenomenon has been eradicated because old foxes are hard to find and are always lurking, as opposed to novices.
The lesson identified with the events of September 11 was, first of all, the conception of an exceptional event, followed by a very professional criminal planning and execution.
Sheikh Khalid Mohammed, creator of the massacre, conceived a new way of striking the West without explosive: transformed civilian aircraft into cruise missiles guided by inhumane beings.
Instead of attacking civilian aircraft with the usual garbage bag, or, as it happened later, with explosive shoes and underpants, explosive filled soda cans, turned civilian aircraft into guns.
Although the planning of the event was meticulous, the Sheikh did not plan on board aircraft to allow their passengers to use their cell phones to inform about current events.
Flight passengers UA93, using their mobile phones on board the aircraft, received the bad news of the ongoing attacks on the twin towers, but reported in turn the bad news that their flight was the same fate.
Todd Beamer will be famous, who in telephone contact with Jefferson, after having prayed our Father, the Psalm 43 (..family justice or God, defend my case against ruthless people, ...) and convince the other passengers to attack the hijackers, said the attack order: "Let's roll."
The sheik studied all the emergency procedures of the American transportation system to use the procedures foreseen in his favor, one of which was to not resist resistance to hijackers but to support them until landing; today the situation is very different, fortunately, on board can not be tolerated any unruly, even non-terrorist behavior due to bad habits or rudeness.
Sheikh Mohammed was not the first to create new unimaginable events, so he will not be the last.
After the lesson identified after September 11, it is necessary for us, and not just terrorists, to use our creativity to identify what are the next vulnerable nodes of typical and important infrastructures in a country that could be used by the minds wicked, to take the next shot.
It can not be a job of a single structure of intelligence and security, it is a teamwork between individuals who are first and foremost competent not for a degree or level of leadership but for capacity, the principals of a country, the leaders, Government Offices, Public and Private Industries: It is necessary to rethink processes towards nodes, with the eyes and minds of a new, mohammed potential, in identifying infrastructure vulnerabilities in a country.
There is no alternative: we will honor death for all the innocent fallen of terrorist wars and Teaching Todd Beamer "Let's roll".
By Pasquale Preziosa