You are wrong, the very next day both Obama and Clinton stated:
On September 12 U.S. President Barack Obama condemned "this outrageous attack" on U.S. diplomatic facilities[142] and stated that "ince our founding, the United States has been a nation that respects all faiths. We reject all efforts to denigrate the religious beliefs of others."[142] After referring to "the 9/11 attacks," "troops who made the ultimate sacrifice in Iraq and Afghanistan", and "then last night, we learned the news of this attack in Benghazi"[142] the President urged, "As Americans, let us never, ever forget that our freedom is only sustained because there are people who are willing to fight for it, to stand up for it, and in some cases, lay down their lives for it."[142] He then went on to say, "No acts of terror will ever shake the resolve of this great nation, alter that character, or eclipse the light of the values that we stand for. Today we mourn four more Americans who represent the very best of the United States of America. We will not waver in our commitment to see that justice is done for this terrible act. And make no mistake, justice will be done."[142]
After the attack, Obama ordered that security be increased at all such facilities worldwide.[9] A 50-member Marine FAST team was sent to Libya to "bolster security."[143] It was announced that the FBI would investigate the possibility of the attack being planned.[144] U.S. officials said surveillance over Libya would increase, including the use of unmanned drones, to "hunt for the attackers."[144]