An email Hillary Clinton failed to turn over to the State Department from her home-brewed server revealed she lied about using the private system for convenience, Face The Nation panelist Susan Page said on Sunday.

The CBS Sunday show squeezed the news into the final 20 seconds of one of its panel segments. The State Department admitted on Thursday that Clinton didn't turn over the 2010 email where she told aide Huma Abedin she wanted a "separate address or device" for fear of "the personal being accessible."

"Didn't turn over an email that showed there were problems with her server," host John Dickerson said. "That's not good."

"An important disclosure for two reasons," Page said. "She gave a different explanation for why she had a private email server. She was concerned about the personal being accessible. It wasn't a matter of convenience, which is what she told the world. Secondly, she didn't turn it over. She deleted this email apparently, and it came up because it came through the aide that she had sent it to, so it goes right to those questions about honesty, trustworthiness, transparency."

Dickerson added that the email also went to the security issues associated with using an unserved server at her home.

"And that email was about the problems that having a home-brewed server would cause," Dickerson said.

Republican opponent Donald Trump hammered Clinton over her private server this week, calling out her "pathetic" statements in defense of her conduct. The State Department Inspector General ripped Clinton for using it, laying out numerous department regulations she violated in a blistering report last month.