 Complete the following phrase:  Armed hostage takings, particularly those planned e.g., by a terrorist group for political purposes, could be considered suicide missions. As most governments have a policy of refusing to negotiate with terrorists, such incidents usually end with a bloody confrontation between the hostage-takers and an armed force e.g., police or military attempting to free the hostages. Also, such hostage-takings often occur in a country foreign to the perpetrators, thereby limiting their chances of escape. Notable examples include the 1972 Munich massacre, the 1977 Landshut hijacking, the 1980 