Skip to content
Our mission is to serve audiences as a distinctive content source for information, insights and cultural experiences essential to living in our diverse, interconnected world.
Arts, Culture & Media
PRI's The World
April 29, 2014 · 7:30 PM EDT
Listen to the story.
Hundred year old lemon found in the British Archives. Many spies were caught because they used lemon juice.
Women working in an SW detection lab.
Nickolay Hansen, pictured above, hid invisible ink in his tooth.
In Arts, Culture & MediaLifestyle & BeliefSideways GlanceThe World in Words.
Tagged: Kristie Macrakisinvisible inkStasi.
Major funding provided by:
A Partner of OZY Media News
Making the foreign familiar, the distant close. Support stories that deserve to be told with a donation to PRI’s The World today.DONATE TODAY >No Thanks