The fact is, they were removed from the NKJ version. Some will say they did not belong etc. etc. but that does not change the fact that they were there and later removed from non-Catholic Bibles.
Yes, I have read them. They are Jewish texts, not Catholic, with very little "doctrine" present in them.
Having said that, the Maccabees books are very valuable, in that the historical accounts of Antiochus (sp?) are illuminating.