  The IceCube neutrino discovery presents an opportunity to answer
long-standing questions in high-energy astrophysics. For their own sake and
relations to other processes, it is important to understand neutrinos arising
from the Milky Way, which should have an accompanying flux of gamma rays.
Examining Fermi TeV data, and applying other constraints up to >1 PeV, it
appears implausible that the Galactic fraction of the IceCube flux is large,
though could be present at some level. We address Sgr A*, where the TeV-PeV
neutrinos may outrun gamma rays due to gamma-gamma opacity, and further
implications, including dark matter and cosmic-ray electrons.
