Head of Shin Bet Nadav Argaman claimed on Thursday that the Shin Bet thwarted over 450 terror attacks in the past year. Argaman spoke at the Unmanned Systems Conference, UVID 2019, initiated by Israel Defense."We are an agency with excellent people, the best technology and synergy within the agency and with Israeli security authorities, which allows us to have an edge on very challenging enemies," Argaman said. "All that allowed us to thwart over 450 terror attacks in the past year and try to provide the citizens of Israel with safe and peaceful daily life without knowing what happens behind the scene."Meanwhile, the IDF mapped on Thursday the house of Kassem Shabli, one of the terrorists who carried out an attack near the West Bank town of Dolev in August, in which 17-year-old Rina Shnerb was murdered.The mapping was done in order to prepare for the demolition of the house in Kfar Kobar on Wednesday night.Kassem a-Karim Ragah Shabli, 25, a member of the PFLP, has been arrested in the past for involvement in terrorist activities. Kassem provided the explosives that were used in the IED as well as assisted in assembling it, and took part in the killing of Shnerb.Two other terrorists were arrested for involvement in the attack.Overnight, the IDF, Shin Bet, Border Police and Israel Police arrested 11 Palestinians suspected of being involved in terrorist activities, popular terror, and violent disturbances against civilians and security forces. The suspects were transferred for questioning.During searches in Kfar Kobar and Tul Karem, IDF soldiers found thousands of shekels in terrorist funds. Alon Einhorn contributed to this report.