HIS AGE:
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>> I THINK TOO OFTEN PEOPLE SET THEIR LIVES BY THE CALENDAR. OLD FOLKS HAVE AMBITIONS AND DREAMS, TOO, LIKE EVERYBODY ELSE. AND WHY DON'T THEY WORK FOR THEM? WHY DON'T THEY GO FOR IT? DON'T SIT ON THE COUCH SOME PLACE. THAT'S MY ATTITUDE .>> Reporter: AND GLENN FOLLOWED HIS OWN ADVICE, STAYING POLITICALLY ACTIVE UNTIL THE END, PUBLICLY OPPOSING THE DECISION TO END THE SPACE SHUTTLE PROGRAM. PRESIDENT OBAMA AWARDED HIM THE MEDAL OF FREEDOM IN 2012 .>> JOHN GLENN HAS STREAKED THROUGH THREE DAYS .>> Reporter: NOW AS A NATION BIDS FAREWELL TO A TRUE HERO, AMERICANS FOR ONE LAST TIME, CAN WISH JOHN GLENN GODSPEED .>> GODSPEED, JOHN GLENN .>> Reporter: GLENN'S FAMOUS SPACECRAFT, " THE FRIENDSHIP 7 ," NOW RESIDE HERE AT THE SMITHSONIAN AIR AND SPACE MUSEUM. THE WHITE HOUSE SAID TODAY THAT JOURNEY LIFTED THE HOPES OF A NATION, AND PRESIDENT- ELECT TRUMP, SCOTT, CALLED HIM A GREAT PIONEER .>> Pelley: NANCY CORDES FOR US TONIGHT. NANCY, THANK YOU.
