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When it comes to solar photovoltaic (PV) systems, there's a common misconception that this growing technology--and the products that accompany it--are simple to install, modify, and maintain by untrained personnel. In reality, it's quite the opposite. As this market continues to expand, there's actually a lack of qualified electricians and inspectors performing this type of work. As a result, many installed PV systems are not in compliance with the NEC and local regulations.

Regarding the Littleton student killers: We seem to think nothing of the constant stream of lies directed at us and our children by the corporate world:

Storey heights are 3.25m in the lower levels, increasing to 3.86m in the upper levels and to 5.08m in the penthouses. These are achieved with flat slab floors 203mm thick spanning a maximum of 7.3m from perimeter columns to interior shear walls. Up to level 56, these shear walls are arranged in a giant H, while at higher levels two arms are truncated to leave a step profile (see Figure 2). At each of three plant floors, a storey-height concrete wall is located on the perimeter.