Fission Process News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Scaling back their commitment to the nuclear deal. we are joined by cnn's fred pleitgen live with the latest in tehran. fred, good morning. >> reporter: good morning, dave. yeah, as we speak right now, the iranians are making that announcement. they've already said some pretty significant things about their reduction in the agreement. they have significantly ramped up the production of low enriched uranium and they've already doubled it. they will reach the limits of the amount of low and enriched uranium they are allowed to stockpile in ten days. they have said before this announcement today ...

An elevation. >> okay. now to the fourth and final question here. re criticality, something i've read up. explain as best as you can. what does that mean? >> sure, recriticality is the resumption or startup of the fission chain reaction process, and there's concern that ear in the reactor and spent fuel pools, even though the reaction should be shut down, it can become recritical again and that means the fission process occurs, release of neutron and energy. in the spent fuel pools that's prevented by the racks that the fuel fits into. it's full of boron which absorbs the neutrons and prevents...

The raw material for nuclear weapons. but second, beyond the nuclear waste problem, nuclear power production is kind of a high-wire act, when the whole idea behind what you're doing depends on this plant controlling a nuclear chain reaction, you really can't afford anything that might interrupt your control. if there's any disturbance, say an earthquake, the chain reaction process is immediately shut down, control rods drop into the hot nuclear core to stop the fission process. even when it is not in effect turned on, that core is still so hot that a lot of things still have to go right in ord...