Your May 15 article on WiFi towers states that "federal communication codes put the emanations well within the threshold of safe exposure." The only federal requirement for these towers is that the microwaves they emit not be strong enough to cook a person's flesh. That does not mean they are safe.
Dr. Martin Blank, associate professor at Columbia University College of Physicians and Surgeons states, "the scientific evidence tells us that our safety standards are inadequate, and that we must protect ourselves from exposure to EMF (electromagnetic frequency) due to power lines, cell phones and the like."
Germany has warned its citizens against using WiFi and cell phones because of the risks they may pose to health. The EU's European Environment Agency has said that a delay in reducing exposure to WiFi and mobile phones could lead to a health crisis similar to those caused by asbestos, smoking and lead in gasoline.
For more information go to www.bioinitiative.org, especially the "Summary for the Public" in their August 2007 report. Another site (a commercial one containing links to articles on the subject) is www.createhealthyhomes.com.
The health effects associated with prolonged exposure to EMF include lack of concentration, sleep disruption, headache, fatigue, disruption of the immune system, changes in cardiac function, leukemia, breast cancer, brain cancer and Alzheimer's disease. They are serious enough that Juneau should establish a plan to address and control EMF emissions from power lines, cell phones and WiFi.