Topic of the day: how to write a headline

There is an old saying: "A picture worths a thousand words" And I might add: "A good headline worths even more" This is the case of a Slashdot article titled: Mars Robot May Destroy Life It Was Sent To Find. At a first glance, I thought this is what it meant (quoted from an excellent writeup by another slashdotter)

it destroyed all life on the planet (the "life it was sent to find").

What actually happened was:

its life detector destroyed signs of life in the samples it's testing.

The latter is obviously much less attention catching!