[jlgreco]

Carefully. ;)

People cooking up shitty meth apparently do it (http://health.utah.gov/meth/html/ToxicologyofMeth/Lithium.ht...) but I don't know how they do it. They might be using tools that wouldn't be available in an airport, but I'm not so sure of that.

[icelancer]

You can do it with a razor blade and a lot of patience, or as the author shows, using a small pipe cutter that you could easily get into the airport with a carry-on.