Two men were arrested and removed from a Pakistan International Airlines passenger jet Friday. It had been on its way from Lahore, Pakistan, to Manchester, England, when something that happened aboard led authorities to scramble Royal Air Force fighter jets and divert the passenger plane to London Stansted Airport.

"Some memories come with a very compelling sense of truth about them. And that happens to be the case even with memories that are not true." -- Daniel Kahneman

Memory is malleable, dynamic and elusive. When we tap into our memories, where's the line between fact and fiction? How does our memory play tricks on us, and how can we train it to be more accurate? In this hour, TED speakers discuss how a nimble memory can improve your life, and how a frail one might ruin someone else's.

Part 3 of the TED Radio Hour episode Memory Games.

About Joshua Foer's TEDTalk

Some people can memorize thousands of numbers, the names of dozens of strangers or the precise order of cards in a shuffled deck. Science writer and U.S. Memory Champion Joshua Foer shows how anyone can become a memory virtuoso, including him.

About Joshua Foer

Part 2 of the TED Radio Hour episode Memory Games.

About Daniel Kahneman's TEDTalk

Nobel laureate and founder of behavioral economics Daniel Kahneman goes through a series of examples of things we might remember, from vacations to colonoscopies. He explains how our "experiencing selves" and our "remembering selves" perceive happiness differently.

Part 1 of the TED Radio Hour episode Memory Games.

About Scott Fraser's TEDTalk

Forensic psychologist Scott Fraser studies how we remember crimes. He describes a deadly shooting and explains how eyewitnesses can create memories that they haven't seen. Why? Because the brain is always trying to fill in the blanks.

About Scott Fraser

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An explosion followed by gunfire in Kabul on Friday claimed the lives of at least two attackers and wounded a small number of civilians. The Taliban claimed responsibility for the attack, which appeared to have been aimed at offices of the International Organization for Migration and stretched over several hours as Afghan security forces tried to hunt down those responsible.

As night fell in Kabul, it was unclear whether the incident was over or not.

Representatives of President Bashar Assad's regime have agreed "in principle" to attend an international peace conference aimed at ending more than two years of brutal warfare in Syria, Russia's foreign ministry said Friday.