Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
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(CNN) - There are so many iconic images from that horrific period that began 50 years ago with the crack of an assassin's rifle: John Kennedy Jr.'s salute at his father's casket, Lyndon B. Johnson being sworn in on Air Force One next to Mrs. Jaqcueline Kennedy, still wearing her blood-stained suit.
And then of course – the image of the suddenly tragically widowed Jackie Kennedy and a Secret Service agent scrambling to protect her.
Earlier this week CNN's Jake Tapper had the rare honor of moderating a panel at the Newseum with that agent, Clint Hill, the man who that day ran towards the target.
Legendary journalists Jim Lehrer and Bob Schieffer were in Texas the day President John F. Kennedy was assassinated, working as reporters for The Dallas Times-Herald and The Star Telegram.
Many "what if" moments surround that day, Lehrer recalls one particular decision that haunted a man for years.
Dallas (CNN) - Five decades after it served as the backdrop for a nation's grief and disbelief, Dallas' Dealey Plaza took center stage once again Friday as Americans commemorated the 50th anniversary of President John F. Kennedy's assassination.
"A new era dawned and another waned a half century ago when hope and hatred collided right here in Dallas," Dallas Mayor Mike Rawlings said in his remarks commemorating Kennedy's death.
Rawlings then read the final words of the speech Kennedy was to deliver that day. That was followed by a moment of silence at 12:30 p.m., the time Kennedy was shot a few feet from where Rawlings spoke.
By CNN Chief Washington Correspondent Jake Tapper and Sherisse Pham
An update on a story "CNN's The Lead with Jake Tapper" first reported in August, regarding the sex scandal that brought down former CIA director David Petraeus.
Jill and Scott Kelley, suing the Obama administration for alleged defamation of character during the aftermath of the Petraeus sex scandal, have added new defendants to their lawsuit, including the Department of State, former Defense Secretary Leon Panetta, and outgoing FBI Deputy Director Sean Joyce.