  We have observed at high resolution spectroscopic changes in Hydrogen
Chloride (HCl) and Hydrogen Fluoride (HF) atmospheric trace gases from the
1970s through 2012. HCl rose in strength through 1998 and then decreased to
2012. HF has shown a continual increase to date. Both results are in general
agreement with observations from the Jungfraujoch in the Swiss alps.
