Every NFL season — as sure as there will be hand-wringing over officiating and scrutiny about whether the Jets and Giants can extricate themselves from their malaises — it happens. A team goes deep into the regular season without losing and the talk begins about whether that team might equal what the ’72 Dolphins did in producing a perfect,

▪ Don’t be threatened, Patriots fans. The Kansas City Chiefs pose no threat to the greatest dynasty in the history of the NFL.

Players and coaches from the Patriots and Chiefs weigh in on the similarities and differences in both dynasties.