1 .The Islamic State; The Tax Refund Scam

2 .President Obama; Chairman Ma

3 .The Director, Cancer Drugs, Smartest Dog

4 .FBI Director on Privacy, The War on Leaks, The Arrest of El Chapo

5 .Ending Life, Gold Rush, Saving History

6 .Treating Ebola, Breeding Out Disease, Foo Fighters

7 .Campaigning for ISIS, SEAL under fire, Blake Shelton

8 .The Ebola Hot Zone, Cleaning up the VA, Steve Carell

9 .Water, Cardinal Se n, Mandy Patinkin

10 .Falling Apart, Chernobyl, Forgotten Corner of Hell

11 .United Nations World Food Programme; Kevin Richardson's efforts to save lions raised in captivity

12 .The Spill at Dan River, Disrupting Cancer, The City of Music

13 .Denied, Inside Homs, Mindfulness

14 .Diplomatic relations reopened between U.S. and Cuba; Sen. Tom Coburn's (R-Okla.) retirement; actress and producer Reese Witherspoon

15 .Inside the Vatican

16 .U.S. Gen. John Campbell and Afghan President Ashraf Ghani

17 .Colorado's Legal Marijuana; Affordable Care Act; Veterans Mountain Climbing

18 .The Republican Leaders, The Cleveland Division, Li Na

19 .60 Minutes Presents: The Many Sounds of Music

20 .DARPA Dan, The Swiss Leaks, Selma

21 .ZMapp, A New Kind Of Terrorist, Bradley Cooper

22 .Remembering Bob Simon

23 .The Storm after the Storm, Lumber Liquidators, Larry David

24 .Argentine Prosecutor Assassination; Golf Company Reunion; James Levine; Laminate Flooring Update

25 .Dead or Alive; A Few Good Women; Back to the Wild

26 .Iraq's Christians, Rare Earth Elements, Starstruck

27 .Bashar al Assad, Killing Cancer

28 .Homeland Security, The Good Friday Agreement, Wikimania

29 .The Attack on Sony, Ambassador Kennedy, Rush to Judgment

30 .A Crime Against Humanity, TED Talks, Hoop Dreams

31 .Death in the Mediterranean, The Battle Above

32 .The Lesson of War, All-American, Whisky Island

33 .An Unlikely Informant, The Unknown America, King of Crossfit

34 .A Monumental Project, Child Suicide Bombers, Falling Apart

35 .War Stories

36 .The Cleveland Division, Water, Who is Larry David?

37 .Colorado Pot, The Storm after the Storm, Bradley Cooper

38 .Recruiting for ISIS, The Spill at Dan River, The Smartest Dog in the World

39 .The Director, The Cost of Cancer Drugs, Saving History

40 .The Tax Refund Scam, Cleaning up the VA, Foo Fighters

41 .Dead or Alive, Breeding Out Disease, Steve Carell

42 .The Swiss Leaks, Alive and Kickin?

43 .Rare Earth Elements, Ending Life, All-American

44 .The Gaskos, Wikimania, Star-Struck

45 .Denied, The Battle Above

46 .War and Hunger, TED Talks, Back to the Wild

47 .Lumber Liquidators, A Monumental Project, The Unknown America

48 .President Rouhani, Pope Francis

49 .Crime Against Humanity, Senator Tom Coburn, Misty Copeland

50 .The Spy Among Us, Li Na

51 .Iraq?s Christians, The Shooting at Chardon High, King of CrossFit

52 .President Rouhani, Pope Francis, The Smartest Dog in the World