Many Americas have criticized former President George W. Bush for sitting silently in a classroom for seven minutes after learning the country was under attack on Sept. 11, 2011, but his former chief of staff isn't one of them.

Andy Card told CNN's Anderson Cooper Sunday that he was "pleased" with how the former president responded.

"I was a little bit surprised that he reacted so calmly when I said words that were so outrageous, but I actually was pleased with how he reacted," Card explained.