John Roberts Adoption Records

After the Supreme Court nomination of Judge John Roberts; the New York Times has been investigating the adoption of his two children; Josie, age 5 and Jack, age 4, stating that it's a part of a regular back ground check.
Should the adoption of John Robert's children be a political hot point or is this breaking the right of a parent to keep his/her child's privacy and safety? John Robert's adoption is being discussed in the forum.