They each have the opportunity to do something positive in their community so that this does not happen again to someone else.

FORBES: Words Can Lead to Murder

No one can know for certain if this senseless act could have been prevented, but we all know we have a moral obligation -- a moral obligation -- to do everything in our power to diminish the prospect that something like this could happen again.

WHITEHOUSE: President Obama Introduces a Plan to Reduce Gun Violence

He needs to actually do something to fulfill the sentiment expressed and the desire for dialogue, because that needs to happen.

WHITEHOUSE: Press Briefing

Stage two, we say something may be about to happen, but we should do nothing about it.

BBC: The hunt for a new 'Sir Humphrey'

To win 3-0 inside three days was terrific, and something we obviously set out to do but never dreamed would actually happen.

BBC: Chris Read

You're also going to see a, see him talking about how we do something to accelerate the process of law - the same things that happen in America already.

BBC: News | BREAKFAST WITH FROST | David Davis on Breakfast with Frost

"I'll probably just get some water, maybe some canned goods, just to make sure I do have something in the house in case something does happen, " said another concerned shopper.

CNN: Y2K fears open flood of bottled water sales

An extraordinary, extraordinary group of astronauts who gave their lives and did it in a way that they knew exactly the risk but never in a -- ever do we ever want to see a circumstance where something like this could ever happen.

CNN: O'Keefe: 'A tragic day for the NASA family'

And you need to make a decision whether--you know, that's something that will happen in the negotiations in terms of what you're going to do with the marital property.

NPR: Avoiding the Financial Headaches of Divorce

I'd rather be caught trying to do something that needs to be done than hanging around shooting the wounded when it doesn't happen.

NPR: Clinton and Clinton Warm Iowa Crowd