Raid Krags News Today

Crew was around 100 miles northeast of sendai. do we know the level of raid krags that they encountered? >> reporter: according to u.s. navy officials, they dont have the exact numbers but they say it was very low. when the three helicopters and the 17 navy crew members were on that search and rescue mission out at sea, the radiation alarms aboard the helicopters went off, started changing, so the helicopters headed straight for the airicarrier ronald reagan. to decontaminate them, it was a simp...