Since questions about wireless phones andbrain cancer were first raised in early 1993, numerous scientificstudies and reviews have been conducted and published throughout the world with support from industry and government. The most comprehensive colloquium to date covering this science was co sponsored byt he International Committee on WirelessCommunication Health Research and Wireless Technology Research, LLC,a t the University "La Sapienza" ofR omein November 1995. Papers fromt hat colloquium with appropriate updates formt he foundation for the current volume. A follow up tothat colloquium isbeing planned fort he spring of 1999 byt he same group and thereport of that colloquium will bet he basis for Volume II ofthis series. As thescientific story about wireless phones and health effects continues to unfold over the next several years, it is important to evaluate thework ina context t hat isb eneficialt ot he enhancement ofpublic health. Two themesa re critical to an appropriate contextual understanding ofthis science.

From the time questions about the impact of wireless technology on public health were first raised in 1993 through the present, Wireless Technology Research, LLC (WTR) has been the largest independent surveillance and research program trying to identify and solve human health problems associated with wireless phones. In 1995 at the University "La Sapienza" of Rome, WTR sponsored the first comprehensive forum for the discussion of these issues. Papers from the 1995 State of the Science Colloquium were collected andpublished in Volume I ofthis series, Wireless Phones andHealth: Scientific Progress. This second volume assembles papers presented at WTR's Second State of the Science Colloquium in Long Beach, CA, in June 1999; it contains the most comprehensive research on the public health impact of wireless phones to date. The operating words for the proper understanding of these data are science and public health. Science is a tool for making public health decisions, but the framework in which we are operating is truly that of public health. We are looking for problems that have to do with wireless technology. We are trying to decide how this technology impacts on the public for one purpose and one purpose alone, and that purpose is to solve problems that are identified. I would like to challenge you, the reader, to suspend your parochial orientation as you consider these latest findings.

From the time questions about the impact of wireless technology on public health were first raised in 1993 through the present, Wireless Technology Research, LLC (WTR) has been the largest independent surveillance and research program trying to identify and solve human health problems associated with wireless phones. In 1995 at the University "La Sapienza" of Rome, WTR sponsored the first comprehensive forum for the discussion of these issues. Papers from the 1995 State of the Science Colloquium were collected andpublished in Volume I ofthis series, Wireless Phones andHealth: Scientific Progress. This second volume assembles papers presented at WTR's Second State of the Science Colloquium in Long Beach, CA, in June 1999; it contains the most comprehensive research on the public health impact of wireless phones to date. The operating words for the proper understanding of these data are science and public health. Science is a tool for making public health decisions, but the framework in which we are operating is truly that of public health. We are looking for problems that have to do with wireless technology. We are trying to decide how this technology impacts on the public for one purpose and one purpose alone, and that purpose is to solve problems that are identified. I would like to challenge you, the reader, to suspend your parochial orientation as you consider these latest findings.

Since questions about wireless phones andbrain cancer were first raised in early 1993, numerous scientificstudies and reviews have been conducted and published throughout the world with support from industry and government. The most comprehensive colloquium to date covering this science was co sponsored byt he International Committee on WirelessCommunication Health Research and Wireless Technology Research, LLC, a t the University "La Sapienza" ofR omein November 1995. Papers fromt hat colloquium with appropriate updates formt he foundation for the current volume. A follow up tothat colloquium isbeing planned fort he spring of 1999 byt he same group and thereport of that colloquium will bet he basis for Volume II ofthis series. As thescientific story about wireless phones and health effects continues to unfold over the next several years, it is important to evaluate thework ina context t hat isb eneficialt ot he enhancement ofpublic health. Two themesa re critical to an appropriate contextual understanding ofthis science.