Daniel is an internationally recognized and influential expert in in EMF radiation, related health issues, and shielding, with a particular focus on the effect of exposure from personal mobile devices. Daniel’s concern regarding the health impact of EMF emissions grew from over thirty years of engineering experience in the telecommunication industry, where he held a variety of leadership and executive positions at SAIC, Telcordia, AT&T, and Bell Labs.

Through the course of his career, Daniel has created requirements for large telecommunication systems, led technical divisions responsible for establishing industry standards, and formed analysis adherence testing for next-generation digital transmission systems. Daniel also oversaw laboratories that analyzed electromagnetic radiation interference, electrical signals, and digital formats.

Daniel is the inventor of DefenderShield®, a form of protection technology for modern electronic devices. In addition to his work with DefenderShield®, Daniel is a highly regarded industry consultant, writer, and speaker, as well as a frequent guest on national radio and television programs discussing the impacts of EMF radiation and protection options.