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Thinner Cheney joins former officials at ground breaking of Bush's presidential center

Mike Stone / Reuters

Former Secretary of State Condoleezza Rice introduces former Vice President Dick Cheney at the ground breaking ceremony for the George W. Bush Presidential Center on the campus of Southern Methodist University in Dallas, Texas, Nov. 16, 2010.

I was taken aback this afternoon when I saw pictures of former Vice President Dick Cheney. He is noticeably thinner, and he walked with a cane. My mental image of Cheney has always been one of a strong, old-guard, cold warrior. Seeing him today was another reminder of how time slips away.

Former Vice President Dick Cheney made a rare public appearance at the groundbreaking for the George W. Bush Presidential Library in Texas on Tuesday. NBC's Brian Williams reports.