  There are various no-go theorems that tightly constrain the existence of
local higher-spin theories with non-trivial S-matrix in flat space. Due to the
existence of higher-spin Yang-Mills theory with non-trivial scattering
amplitudes, it makes sense to revisit Weinberg's soft theorem - a direct
consequence of the Lorentz invariance of the S-matrix that does not take
advantage of unitarity and parity invariance. By working with the chiral
representation - a representation originated from twistor theory, we show that
Weinberg's soft theorem can be evaded and non-trivial higher-spin S-matrix is
possible. In particular, we show that Weinberg's soft theorem is more closely
related to the number of derivatives in the interactions rather than spins. We
also observe that all constraints imposed by gauge invariance of the S-matrix
are accompanied by polynomials in the soft momentum of the emitted particle
where the zeroth order in the soft momentum is charge conservation law.
