The U.S. opened a Terminal High-Altitude Area Defense battery in Guam to Korean journalists on Monday to allay fears here over the harmful effects of the weapons system to be stationed in southern Korea.

A Korean military officer demonstrated that the electromagnetic waves emitted by the radar at Site Armadillo in northwestern Guam, 1.6 km away from the battery reached a maximum of 0.0007 watt per sq.m, just 0.007 percent of the 10 watts per sq.m permitted under Korean law.

"This is a level that you encounter everywhere in your daily life," the officer said.

The move came at the request of the Korean government, which is battling growing protests from locals.

