WARNING! WARNING! WARNING!

SAN FRANCISCO (AP) -- 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.  About 20 monitors out of 124 nationwide were out of service earlier this week, including units in Harlingen, Tex. and Buffalo, N.Y. on Friday, according to the EPA.

READ: News from The Associated Press

NOTE:  The number in the upper left hand corner that continues to change is the radiation count for the Los Angeles, California area coming off the Pacific Ocean.  This is a good indicator of what's coming from Japan.  A count of over 100 would be in the danger zone.

CLICK:  WORLD RADIATION MAP   CLICK:  U.S. RADIATION MAP