Oklahoma City bombing Following the
Oklahoma City bombing in 1995, security was increased at high-profile government buildings around the
United States.
Jersey walls were erected around some buildings to prevent vehicles from coming too close.
Pennsylvania Avenue in front of the
White House was closed off to traffic.
September 11 attacks Following the attacks of September 11, 2001, numerous measures were by the
United States and other countries to increase security in many settings. Soon after, the United States launched the
Department of Homeland Security.
Boston Marathon After the
Boston Marathon bombing, police vowed to install additional security measures—including bag checks and additional barriers—while maintaining a friendly, happy atmosphere. Police banned backpacks, strollers, suitcases, glass containers, some costumes and props, weight vests, and items larger than . More than 3,500 uniformed
Boston Police officers were present for security.
January 2015 Île-de-France attacks France has deployed soldiers at sensitive sites during French military operations overseas. The
January 2015 Île-de-France attacks led to the deployment of
gendarmes and soldiers at major civic centers in France and other European countries. The attacks lead to
counter-terror operations in Belgium and other countries. There has generally been an increase in soldiers being deployed around Jewish schools and synagogues in France and Belgium. Concern around
Terrorism in the European Union has risen in the wake of the
2015 Copenhagen shootings. ==References==