Sharing air space could be risky.

• Position: Tomahawk cruise missile - Brief Article

The Navy's Tomahawk cruise missile is entering a new era with the recent introduction of the "tactical Tomahawk," a more advanced version that also is less expensive.

However, the Navy has yet to solve a potentially dicey problem. The tactical Tomahawk, unlike its predecessor, can be redirected in flight. This may create difficulties if Tomahawk enters airspace where other services' military aircraft or...