In the January 2004 edition, an editing error in the story “Wi-Fi remains a work in progress” resulted in a reference to off-the-shelf Wi-Fi gear that emits 25 megawatts of power; it should have read milliwatts. Also, in a sidebar to “Disaster Recovery, Leonard Angle of the San Diego County Sheriffs' Department was wrongly identified as Leonard Angel. MRT regrets the errors.