Final answer:
Terrorists are individuals who commit acts such as explosions and arson with the intent of terrorizing people to advance their agendas, exemplified by the Oklahoma City bombing and Boston Marathon attack.
Step-by-step explanation:
Individuals who carry out acts such as exploding a device or committing arson in designated places with the intention of terrorizing others are typically known as terrorists. These terrorists often target public buildings, events, or services to induce fear and push forward their ideological, political, or religious agendas. Historical examples include the Oklahoma City bombing by Timothy McVeigh in 1995, which was an act of domestic terrorism against the United States government, and the 2013 Boston Marathon bombing by the Tsarnaev brothers, aimed at causing chaos and terror among civilians. There have also been severe arson attacks, like the targeting of LGBTQ institutions in the 1970s and the UpStairs Lounge bar fire in New Orleans. Terrorism, whether domestic or international, is a strategy used to destabilize societies and governments, frequently resulting in tragic loss of life and tremendous property damage.