  Experiments show that at even denominator fractions (EDFs) ($\nu=1/2, 3/4,
3/2$,...) the two-dimensional electron gas in a strong magnetic field becomes
compressible, has no energy gap, and demonstrates the presence of an ostensible
Fermi surface. Since this phenomenon results from a minimization of the
interaction, rather than the kinetic energy, the EDF states might well exhibit
deviations from a conventional Fermi liquid. We show that impurity scattering
at EDFs and its interference with electron-electron and electron-phonon
interactions provide examples of intrinsically non-Fermi-liquid transport.
