[The] single most common source of changing requirements [is] requirements that were not significantly investigated in the first place.

Elevator fatalities are just not a common occurrence.

There has not been a lab yet this year that we have investigated.

Now that the tests have been done, we know what it's not. Whatever it was, it was significantly more debilitating yesterday morning.

We've had restrictions on motorized decoys for several years. This was the first year they could not be used on private hunting areas for the first week of the season.

We investigated this report,