Published: Apr 18, 2011 11:16 AM EDT
Updated: Apr 18, 2011 8:16 AM EDT

In Japan, robots are being sent into the stricken nuclear plant.  Officials say the first radiation measurements taken inside two reactor buildings show a harsh environment -- but it's not impossible for people to work in.  These measurements mean workers trying to restore plant systems will only be able to stay for short intervals. The radiation should not delay progress toward achieving a cold shutdown of the plant within nine months.