12 Jets targeted by a green laser at Seatle-Tacoma Airport

All within a 20 min period. Police were unable to find the culprit(s). This has been a growing problem all over the world. CNN

(CNN) -- Pilots on 12 jetliners landing at Seattle-Tacoma International Airport on Sunday reported that someone was shining a green laser light into their cockpits, bringing renewed attention to a problem that has plagued pilots since the introduction of cheap laser pointers several years ago.

All the planes were targeted during a 20-minute period Sunday night, and all landed safely. But the incident led to pilots simultaneously trying to avoid being temporarily blinded by the light while trying to help authorities pinpoint its source, believed to be about a mile north of the airport.

Air traffic controllers continuously cautioned pilots about the light during the episode, which lasted from 7:10 to 7:30 p.m. PT.[...]

On Friday alone, there were reports of incidents in Salt Lake City and Ogden, Utah; Lake Charles, Louisiana; Orlando, Florida; and Burbank and San Jose, California.