Laser pen attacks on aircraft seem to be on the rise in many places around the world.
BBC: Man gets 30 months in prison for shining laser at plane
In March 2012 Adam Gardenhire aimed a green laser pen at a business jet and then shone it at a Pasadena police helicopter sent to find the source.
MotionTools and the Air Mouse app enable a presenter to turn their computer's cursor into a highlighter, laser pointer or pen.
ENGADGET: Movea turns your iPod touch or iPhone into an Air Mouse for just $2
Different materials were handled roughly, placed in water, burnt, scoured with an abrasive cleaning pad and covered in black marker pen, but the laser was still able to read the surface fingerprint.
BBC: NEWS | Technology | Laser spots paper 'fingerprints'
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