  The ALPHA collaboration (of which I am a member) has made great strides
recently in trapping antihydrogen and starting down the path of making
spectroscopic measurements. The primary goal of the experiment is to test CPT
invariance but there is also interest in testing another fundamental issue --
the gravitational interaction between matter and antimatter (the so-called
question of "antigravity"). As well as the other antihydrogen trapping
experiments -- ASACUSA and ATRAP -- there is also a new experiment in the
Antiproton Decelerator hall at CERN called AEGIS which is dedicated to testing
the gravitional interaction between antihydrogen and the Earth. It has been
claimed in the literature that there "is no compelling evidence or theoretical
reason to rule out such a difference (i.e., between $g$ and $\bar{g}$) at the
1% level." I argue in this short paper that bending of light by the sun
provides a more stringent limit than this.
