  It is well known that a vector potential cannot be defined over the whole
surface of a sphere around a magnetic monopole. A recent claim to the contrary
is shown to have problems. It is explained however that a potential of the
proposed type works if two patches are used instead of one. A general
derivation of the Dirac quantization condition attempted with a single patch is
corrected by introducing two patches. Further, the case of more than two
patches using the original Wu-Yang type of potential is discussed in brief.
