 After the 1998 United States embassy bombings and the subsequent focus on embassy security, the waiver of security standards was rescinded by the Diplomatic Security Service, the law enforcement and security arm of the U.S. State Department.High-level talks between the U.S. and German governments over security issues at the Pariser Platz site took place for almost five years before an agreement was reached and a new security waiver was issued, this time by U.S. Secretary of State Colin Powell.The security waiver stood after the September 11, 2001 attacks.