Vice President Joe Biden is doing the right thing by honoring the victims that were affected from the Boston bombing. This just shows the world that no matter what comes at America; we stand strong and nothing will ever take that stance from us. America has proven many times that we just do not back down.
America will never ever stand down is true when it comes to being terrorized. If it were just a matter of a disagreement that could be resolved with diplomacy, it would be a different matter. But this was an act of terrorism that cannot be excused, condoned, or submitted to.
We are a modern day empire and all empires in the world have a time where they do well and a time when they sink, especially if they are too fat and self satisfied. No one can predict when the United States is going to have to cede its power and become more cooperative or fall.
Rhetoric is just words being thrown around for patriotism and I think that is what Biden is doing when he makes this comment. The bombing last year was bad, but in a worldly sense, it was far less significant than the problems other countries experience. America is not as strong as it once was, it's possible that we may have to stand down in the future.