Assassinate: (v.) planned murder of a prominent person, usually someone with political power.
Caisson: (n.) a wagon with two wheels, ordinarily used for artillery ammunition
Flaws: (n.) defects, imperfections, faults
inaugural: (adj.) marking the beginning of something (in this case, the speech a president gives upon taking office).
Suggest: (v.) to hint, to give an idea of, to present a possibility.
Visionary: (n.) a dreamer, a person who has an ideal of what should be.
Vulnerable: (adj.) weak, unprotected.