The NCDC press office sent an official response to Politifact, which is below.
The NCDC has not responded to me personally, I only got this by asking around.
I’ve provided it without comment.
Are the examples in Texas and Kansas prompting a deeper look at how the algorithms change the raw data?
No – our algorithm is working as designed. NCDC provides estimates for temperature values when:
1) data were originally missing, and
2) when a shift (error) is detected for a period that is too short to reliably correct. These estimates are used in applications that require a complete set of data values.
Watts wrote that NCDC and USHCN are looking into this and will issue some sort of statement. Is that accurate?
Although all estimated values are identified in the USHCN dataset, NCDC’s intent was to use a flagging system that distinguishes between the two types of estimates mentioned above. NCDC intends to fix this issue in the near future.
Did the point Heller raised, and the examples provided for Texas and Kansas, suggest that the problems are larger than government scientists expected?
No, refer to question 1.