And here comes the fear mongering and propaganda - right on schedule:
The Science of Dry Ice Bombs, Like LAX’s
Improvised explosives detonated at LAX rely on basic chemistry.
http://news.nationalgeographic.com/...dry-ice-bombs-work/?google_editors_picks=true
Although dry ice—frozen carbon dioxide—is often used to ship food products and to dazzle high school chemistry students, it can also be the basis for improvised explosive devices. A number of people have been injured with dry ice bombs in recent years, and two such devices detonated at Los Angeles International Airport (LAX) over the weekend.
On the evening of October 14, dry ice exploded at the Tom Bradley International Terminal in Los Angeles, according to airport police. The blast occurred in an employee restroom that was inaccessible to the general public. There were no injuries reported and flights were not delayed.
Authorities found three plastic bottles in the restroom that had been packed with dry ice; one of the bottles had exploded. Although the case has been referred to the FBI, Los Angeles police detective Gus Villanueva told the media that there is "no nexus to terrorism at this point."
The day before, another plastic bottle filled with dry ice had exploded at the same airport, also in an employee restroom. Terminal 2 was briefly shut down for an investigation though no one was hurt.
Inside a Dry Ice Bomb
It's not the first time that dry ice explosions have made headlines.
In 2011, a high school chemistry student in suburban Chicago lost his left eye after a plastic bottle containing dry ice and water reportedly exploded during a class demonstration.
Family of the Oak Lawn, Illinois, student sued the school, alleging that proper safety precautions, including the issuing of goggles, had not been taken.
Dry ice is very cold, −78.5°C (−109.3°F), and handling it can be tricky. A dry ice bomb can explode within seconds of being sealed.
According to the Oak Lawn suit, the teacher had allegedly sealed the bottle, then passed it around the class so that students could feel the growing pressure inside.
Mitch Andre Garcia, a chemist at UCLA, wrote on his blog that the actions of the teacher were: "Dumb. Dumb. Dumb."
Garcia, who has worked with pressurized dry ice, explained that the frozen carbon dioxide sublimes (or changes) to gaseous carbon dioxide at room temperature. That gas has a much greater volume than the original solid.
"If you put all this volume in a closed container, the pressure will build and build until the container fails and explodes," wrote Garcia. "You make a bomb as soon as you put dry ice in a closed container. The addition of water accelerates the sublimation, causing the pressure to build up faster."
Garcia added that he has demonstrated dry ice explosions at public events, but he follows a number of precautions. He seals a small amount of dry ice in a two-liter pop bottle and places it under a plastic mail crate to contain the explosion and catch any shrapnel. He has everyone stand back.
"It's really loud," he wrote. "Even with the mail crate atop, the explosion still throws the bottle/crate 5-10 feet in the air."
Garcia noted that
making a dry ice bomb is actually illegal in many parts of the country, and can lead to imprisonment.

WTF???
Other Dry Ice Bombs
In May, an employee at Disneyland in southern California was arrested for allegedly putting a dry ice bomb in a trash can at the popular theme park.
"This is a simple device," John Goodpaster, an explosives expert at Indiana University-Purdue University Indianapolis, told the news media at the time. "It's not a pipe bomb filled with gunpowder, but it definitely will generate an explosion."
Goodpaster said the size of the explosion can vary based on the container's size and the amount of dry ice used.
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