Are there certain symbols that are so widely cherished and understood to convey certain meanings that the government can regulate their use?

The American Flag

Explanation:

Texas v. Johnson (1989)

This Landmark Supreme Court Cases and the Constitution eLesson focuses on a case involving expressive conduct, and what is for many a deeply cherished symbol of America—the U.S. flag. In a closely divided (5-4) ruling, the Supreme Court held that states could not forbid burning the U.S. flag in protest, because doing so would violate the freedom of speech protected by the First Amendment.

try c

explanation:

because health care was someone else i think

counter-terrorism incorporates the practice, military tactics, techniques, and strategy that government, military, law enforcement, business, and intelligence agencies use to combat or prevent terrorism.

basically prevent, pursue, protect, and prepare, google it if you need more info