I write letters to the editor on a variety of subjects, but the ones that get published all seem to be on Global Warming. The most recent was to US News and World Report. It can be found here. Apparently, it didn't get into the print edition. This is definitely second class as compared to getting in to the dead-tree edition, but it's a national audience.
A LTE isn't a place to put all your wisdom, it's a place to chip away at one of the Republican falsities.