  It is shown that meson radii can be extracted from diffractive scattering
experiments of the type: $m+p\to m + X$, where p stands for the target proton,
and m for the incident charged meson $\pi^+$, $\pi^-$, $K^+$, or $K^-$. The
basis of the method used to perform this extraction is the QCD-based
SOC-picture for inelastic diffraction in high-energy hadron-hadron and
lepton-hadron collisions proposed in a recent Letter. The obtained results for
pion and kaon charge radii are compared with those determined in meson form
factor measurements.
