Shin Bet called upon the Government of Israel to reach a peace agreement with the Palestinians. In May 2005, Dichter was replaced by Yuval Diskin, who served until 2011. In 2011, Yoram Cohen was chosen as the new head of Shabak, and served until 2016. In 2016, Nadav Argaman was chosen as new head of Shabak, and assumed office on 8 May 2016. Former Shin Bet director special assistant Barak Ben-Zur said that since 1948 (or more particularly 1957) the group has been brought under control of the Knesset to monitor its budget. In May 2002, a landmark was set when Shin
United States Secret Service later recall some of this in his memoir, "Twenty Years in the Secret Service". The period following the Kennedy assassination was the most difficult in the modern history of the agency. Press reports indicated that morale among the agents was "low" for months following the assassination. The agency overhauled its procedures in the wake of the Kennedy killing. Training, which until that time had been confined largely to "on-the-job" efforts, was systematized and regularized. The Reagan assassination attempt also highlighted the bravery of several Secret Service agents, particularly agent Tim McCarthy, who spread his stance to protect Reagan as six