Gaps in US radiation monitoring system revealed

Gaps in US radiation monitoring system revealed
http://www.sfgate.com/cgi-bin/article.cgi?f=/n/a/2011/03/25/state/n174118D69.DTL&type=science

"Parts of America's radiation alert network have been out of order during Japan's nuclear crisis, raising concerns among some lawmakers about whether the system could safeguard the country in a future disaster."