What does it mean in the declaration of independence when it says "whenever any form of government becomes destructive of these ends, it is the right of the people to alter or abolish it?"

On average, being married has a(n) effect on happiness.

The 6th amendment's guarantee of a speedy and public trial is aimed at a. deterring potential criminals by fear of swift and certain punishment. b. trying those accused of crimes without undue delay and avoiding secret trials. c. eliminating overcrowded dockets in the nation's criminal courts. d. preventing jurors from being unduly influenced by public opinion.

To your knowledge had the usa ever invaded canada after the war of 1812