Note from David: No, the card is not the mark and is not dangerous. It is the precursor to the mark that will be used in the first 3 1/2 years of the tribulation. Read chapter 13 of Hidden Manna for the End Times called Mark and Image of the Beast.
Also, they have backed off deadlines on this two or three times before because of pressure from lawmakers, so don't be surprised if they do it again. When it does happen, it is a sign of the coming man-child's birth, as we have discussed in Luke 2:1-7.
UPDATE: The National ID Card was delayed again until January 15, 2013. However, they are not to be trusted. In the midst of the next catastrophe, they will implement it with "public safety" as the excuse.