Weinberg's energy-momentum pseudotensor for Schwarzschild field
  Weinberg's energy-momentum pseudotensor is obtained for Schwarzschild metric in harmonic coordinates. On the horizon it possesses unintegrable singularities. For this reason the total energy of a collapsar can't be obtained by integrating energy density over the system's volume. The implication for gravity theories is noted. A thought on how to choose unique energy-momentum tensor is given. 
A.I.Nikishov (Lebedev Physics Institute)