Credit: Sean McCabe

The most memorable reporting I've encountered on the conflict in Iraq was delivered in the form of confetti exploding out of a cardboard tube. I had just begun working at the MIT Media Lab in March 2006 when Alyssa Wright, a lab student, got me to participate in a project called "Cherry Blossoms." I strapped on a backpack with a pair of vertical tubes sticking out of the top; they were connected to a detonation device linked to a Global Positioning System receiver. A microprocessor in the backpack contained a program that mapped the coördinates of the city of Baghdad onto those for the city of Cambridge; it also held a database of the locations of all the civilian deaths of 2005. If I went into a part of Cambridge that corresponded to a place in Iraq where civilians had died in a bombing, the detonator was triggered.

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