With the Affordable Care Act seemingly off to a good start in its first year, increasing access to insurance coverage for adults, attention is likely to turn to an older program for children that will come to an end in 2015 if it is not reauthorized: the Children's Health Insurance Program, or CHIP. This program has made a huge difference in insurance coverage for children, so much so that they are not, and did not need to be, the primary beneficiaries of the A.C.A. But that does not mean that children are not a concern.