1.   But North Korea has rejected South Korean reactors, resulting in threats by both sides to call off the agreement.

2.   North Korea continues to reject substitute reactors made by South Korea for technical and political reasons.

3.   North Korea has sited safety in rejecting reactors from its capitalist rival South Korea, but the real reason is believed to be pride.

4.   The North has rejected South Korean reactors as unsafe, but it is believed to be acting out of national pride.

5.   The North has rejected reactors from its capitalist rival, citing safety concerns, but the real reason is believed to be national pride.

6.   The nuclear deal has hit other snags as North Korea continues to reject receiving reactors from its southern capitalist rival for technical and political reasons.

7.   U.S. and South Korean officials have warned that they would seek U.N. sanctions if North Korea continued to reject South Korean reactors, thus blocking the deal.

8.   If North Korea rejects South Korean reactors it would not necessarily bust the nuclear freeze deal but Pyongyang would not get financed reactors elsewhere, US officials said Thursday.

9.   A round of talks in Berlin last month failed after the North rejected the reactors from its arch foe to the south.

10.   A round of talks in Berlin last month failed after the North rejected the reactors from its southern arch rival.