According to Michael Eisen's dispatch from Giants.Com, the Giants have selected two special leaders to be their honorary captains for the NFC Championship Game.
One of the men is very well known to the Giants and their fans: Harry Carson, the Hall of Fame linebacker who played for the team from 1976-88. 
The other honorary captain has become a special figure to the players and coaches this season, but is unknown outside the immediate team family: U.S. Army Lt. Colonel Greg Gadson, who lost both of his legs in May when an IED (improvised explosive device) detonated while he was serving in Iraq.
Gadson spoke to the Giants prior to their victory in Washington in September and he attended their Wild Card victory at Tampa Bay two weeks ago.
Coach Tom Coughlin selected Carson and Gadson as the honorary captains for their leadership abilities and the respect they command from the players and coaches.
“I’ve always been a very strong advocate of Harry in terms of what he accomplished on the field and the quality of person he is,” Coughlin said. “Harry Carson, to me, represents the Hall of Fame, the New York Giants and New York Giants pride, and I think this is another excellent opportunity for us to express our gratification to Harry for the great player that he was and the quality of person that he is.
“Lt. Colonel Greg Gadson … is a real hero," Coughlin said. "There is a real man. His sacrifice, what he has done in his young life so that we all are able to sleep under the blanket of freedom is an incredible testimony to the quality of man that he is and his belief in the values that we all aspire to believe in."