Should America Start Using the Metric system?

[aronnax]

Dunno about elsewhere, but normally we'll shorten kilometres to kays when speaking.

Sounds too much like money if you say 'kays', with the exception of the 2.4km run. From my experience, it is usually shorten to km.

 

[History_Buff]

Do like the U.S. military did (does?) and shorten it to klicks.