Nice article about '72 Dolphins and this year's Pats

[Handel]

Here they come again, the NFL's grumpy old men, tarnishing their legend a little more each time they grumble about another team's attempt to fashion a similar piece of history. The 1972 Miami Dolphins will forever be remembered as the first NFL team to achieve an undefeated season, but for some Dolphins it has always seemed that being the first is not enough. They desperately want to remain the "only."

See there for more: http://sportsillustrated.cnn.com/2007/writers/phil_taylor/11/07/dolphins/index.html