Comment on "Disorder and Quantum Fluctuations in Superconducting Films in Strong Magnetic Fields"

This is a Comment to the paper by Galitski and Larkin in Phys. Rev. Lett. 87 (2001) 087001 (cond-mat/0104247). It is pointed out that their argument that the quantumn glass transition field should be higher than the mean field H_{c2}(0) is incompatible with available data showing the so-called field-tuned superconductor-insulator transition phenomena.