  We performed a series of high-resolution (up to 1024^3) direct numerical
simulations of hydro and MHD strong turbulence. We found that for simulations
with normal viscosity the slopes for spectra of MHD are similar, although
slightly more shallower than for hydro simulations. However, for simulations
with hyperviscosity the slopes were very different, for instance, the slopes
for hydro simulations showed pronounced and well-defined bottleneck effect,
while the MHD slopes were relatively much less affected. We believe that this
is indicative of MHD strong turbulence being less local than Kolmogorov
turbulence. This calls for revision of MHD strong turbulence models that assume
local "as-in-hydro case" cascading. Nonlocality of MHD turbulence casts doubt
on numerical determination of the slopes with currently available
(512^3--1024^3) numerical resolutions, including simulations with normal
viscosity. We also measure various so-called alignment effects and discuss
their influence on the turbulent cascade.
