Only last spring nearly everyone involved in regulating airline safety thought the idea of giving guns to pilots was a desperate, potentially calamitous way to prevent hijackings.

"The reason this is potentially calamitous is that no one is in charge."

This state of affairs in so many of the nation's high schools is potentially calamitous, not just for the students but for society as a whole.

Scientists say those gases, from smokestacks, tailpipes, and burning forests, are contributing to a potentially calamitous warming trend.

As such we appear to be seeing a continuing shift from a sustainable 'not for profit' model toward one with potentially calamitous consistent and significant loss-making characteristics.

It was a heavy-handed safeguard against anyone other than the ship's commanding officer having access to the potentially calamitous knowledge of the dangerous and notoriously unstable high-energy particle.

That's a potentially calamitous situation.

The importance of these laws passed pales, however, compared with the potentially calamitous harm that other parts of the contract can inflict on current and future generations.

Indiana Harbor Belt Railroad argued that the potentially calamitous nature of a chemical spill meant that strict liability should be imposed on shippers shipping hazardous chemicals.

Failing to remove a despot with the means to create havoc in a critical region would leave the United States open to potentially calamitous losses of all sorts, including economic ones.