CIA agrees North Korea can fit nuclear weapon on missile - NBC

"The CIA and other key U.S. intelligence agencies agree with the assessment that North Korea has successfully miniaturized a nuclear weapon to place atop a ballistic missile," NBC News said in a recent article citing U.S. officials.

Key quotes:

• The disclosure adds to the emerging picture about a new intelligence estimate that has significantly ratcheted up tensions between the U.S. and North Korea
• What has yet to be learned is what confidence level various agencies ascribe to the analysis — low, medium or high
• U.S. officials have also been pushing back on the idea that they were surprised by the development, saying that it had been expected for some time