After you sit and review the stuff in Boston, you come away with some lessons.
First, it only take a little bit of brain-washing to get some kid who grew up in America to be all happy and gleeful over killing innocent men, women and children. These two idiots weren't capable or rational enough at their youthful age to ask stupid questions or just things right away.
Second, the Boston cops have readily proven that there's not reason why you shouldn't have a AR-15 rifle or any assault rifle around, with magazines capable of holding thirty rounds. You can't readily depend on the cops, and you can't speculate or guess when some Islam nutcase might pull up in your driveway. Five to ten rounds....might not be enough, and you don't need to fumble around with a second magazine of ammo.
Third, digital cameras ought to be at every single sports event in America.....at least forty in every stadium.
Fourth, when some idiot mayor or police chief has said a nutcase is in your neighborhood, and then eight hours later....says it's ok to walk out and do regular stuff, but they haven't caught the guy yet.....common sense ought to dictate that they are fools.
Fifth and final, the sad truth is that you can't be safe anywhere. You could be at some soccer game, a political rally, a circus, or even a church meeting.....and have some nut show up to cause harm.