Burn Rate of WTC Cubicles Key to Probe GAITHERSBURG, Md. (AP) - Computers and other office equipment fueled the World Trade Center fires long after the jets that crashed into the towers incinerated, suggesting a need to consider new fire codes for modern office buildings, federal investigators said Tuesday. The National Institute of Standards and Technology, which is investigating the cause of the buildings' collapse on Sept. 11, 2001, recreated the World Trade Center fire in a mock cubicle. Investigators discovered that while the jet fuel and the plane's contents burned up in a matter of minutes, the contents of...