Comments on new results in the physics of γγ collisions

The resonance type enhancement discovered recently near the γγ → K*0anti K*0 reaction threshold is explained by the one-kaon Regge exchange. The problem of the experimental extraction of the reactions γγ → ωω, γγ → K*0anti K*0, γγ → ρ0φ is discussed. It is shown that there are no grounds to use the t-channel factorization model for the explanation of the near threshold enhancement in the reaction γγ → ρ0ρ0. The reactions which can be used to search for the exotic state in the ρ+ρ+, ρ-ρ- and ρ±ρ0 channels are pointed out. (orig.)