workers were evacwaited by late afternoon. it's not known what caused the smoke. officials say there has not been a spike in radiation in the area. at this point cooling systems for two out of the six reactors there are running normally. >>> the world health organization say there is is little short-term risks from food contaminated by radiation in japan. they fear it has spread beyond the 18-mile zone. japanese officials have banned the sell of spinach and milk from areas around the reactors. the situation needs to be monitored carefully because food born radiation is a more serious risk of health. >>> top u.s. safety initials are calling for inspections at all u.s. plants in light of what is happening in japan. the nuclear regulatory commission met in rockville maryland today. they will review all 104 u.s. nuclear plants and determine if any changes are necessary. >> here in the united states we have an obligation to the united states to under take a methodical review of our own facilities. >> lawmakers and antinuclear activist are also calling for safety measur