In US, President Barack Obama, has presented the nation's highest civilian honor, Presidential Medal of Freedom, for the last time as President to 21 individuals. <br/><br/>In a function at White House yesterday, Obama presented the Award to personalities including philanthropists Bill and Melinda Gates, famous athletes, artists, activists, scientists and others. <br/><br/>Speaking on the occasion, Obama said, they had touched him in a personal as well as in an influencing way. <br/><br/>The medal is awarded to those who have contributed to the nation's interests and security, peace, culture, or other major public or private works.