Former President Bill Clinton's call for the Supreme Court to strike down the Defense of Marriage Act (DOMA) is being criticized.

DOMA, which Clinton signed into law in 1996, prevents federal agencies from recognizing the legal marriages of gay and lesbian couples. In an op-ed published Thursday in The Washington Post, Clinton called the law discriminatory and called for the high court to strike it down.

Critics, however, charge that Clinton did not say enough.

“As welcome as Clinton's words are, there are two that are conspicuously absent: I'm sorry,” wrote Post columnist Jonathan Capehart.

“Sorry for signing the bill. Sorry for crowing about it in radio ads on Christian radio stations during his '96 reelection campaign. Sorry for the harm it has caused same-sex couples and the income inequality it exacerbates.”

Huffington Post Gay Voices editor Michelangelo Signorile had harsher words.

“The reason Bill Clinton signed DOMA is, quite simply, because he refused to be leader on a civil rights issue, irrationally fearful of the ramifications of vetoing the bill and rationalizing the damage caused by signing it,” Signorile wrote. “That refusal to take leadership really goes back to day one of his presidency. That was when he signaled to the GOP, like a frightened person on the street signals fear to a barking dog, that he was deathly afraid of the gay issue and would not be a leader on it.”