Frogs97
Pre-takeoff checklist
The post about the TFRs over AZ had me go look at what was out ther. I came across this one that is for "special security reasons", but is from 9000'-17,999'. What kind of activities would require the floor of a TFR to be 4000' AGL?
http://tfr.faa.gov/save_pages/detail_7_4595.html
http://tfr.faa.gov/save_pages/detail_7_4595.html