1.   This interests Washington because light-water reactors produce far less plutonium than graphite technology.

2.   Also on the list of contentious issues to be raised at the current talks in Geneva will be arrangements for the replacement of the graphite technology, Gallucci said.

3.   Also on the list of contentious issues to be raised at the talks in Geneva will be arrangements for the replacement of the graphite technology..

4.   On the list of issues to be raised at the talks in Geneva will be arrangements for the replacement of the graphite technology.