There are always lessons that can be learned after any attack, much of the lessons learnedafter the bombing in Oklahoma were taken into affect. The U.S government realized domesticterrorism is not something to take lightly and to put more effort in its counter-intelligenceagency. The attack was essentially a wake up call for the government security. “After OklahomaCity, the GSA determined that federal buildings from now on should be set back from the street,that blast-resistant glass should be used and the buildings themselves engineered to prevent thefloors collapsing.” (Naylor, B. Par. 10) The encryptions that the attackers used in the Paris attackwere hard to decrypt they often-used burner phones and got rid of the sim cards frequently.Europe can learn from this by better screening the refugees who come through, despite that massamount of people. Conducting through searches of counter-intelligence. ISIS recruits from allover the world, but a large number have been coming from Europe. Five of the attackers hadtraveled to Syria.The advancement in terrorism over the years from 1995 to 2016 has drastically changed.The methods used, the technology, the willingness to complete the mission, types of propagandaused has all changed terrorism in front of our eyes. The use of social media is a big gamechanger. Back in 1995 when Timothy McVeigh planned his attack he did not get coverage allover the Internet through social media. Reporters who were on scene and, journalists who wrote8