SeaGlass Modeling Animation (IMAGE) University of Washington Caption SeaGlass helps detect cell phone surveillance by modeling a city's cellular landscape and identifying suspicious anomalies. This animation shows all measurements captured from a single cell tower near Seattle's Lake Union under 'normal' conditions over two months, with stronger signals in red and weaker in blue. Credit University of Washington Usage Restrictions With credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.