Corrections.

• Position: IN FOCUS: DEFENSE AND TECHNOLOGY NEWS - Correction notice

In the March 2008 story, "Demand on the Rise for Small Hovering Drones," it was reported that Aurora Flight Sciences of Manassas, Va., competed with BAE Systems and Honeywell for DARPA's organic air vehicle program contract. It should have been noted that the company later participated in another unmanned air vehicle--under the Future Combat Systems program that the Army canceled last year.

The story stated that a Marine Corps unmanned air vehicle program in which Aurora was competing was cancelled, but the program was actually...