While Gonzales's statement has a measure of quibbling precision to it, his logic is troubling because it would suggest that many other fundamental rights that Americans hold dear (such as free speech, freedom of religion, and the right to assemble peacefully) also don't exist because the Constitution often spells out those rights in the negative. It boggles the mind the lengths this administration will go to to systematically erode the rights and privileges we have all counted on and held up as the granite pillars of our society since our nation was founded.
Also of note is that virtually NONE of the major news outlets seem to be covering this development! A google news search for "Gonzales Habeas Corpus" turns up only 101 hits with no major outlets listed!
You can also See Stephen Colbert's coverage including excerpts from the testimony HERE, just select the third video down on "Exact Words""