Almost one year after a 50-ton canister filled with nuclear waste got wedged inside a storage cavity and was left suspended on a metal flange about 18 feet from the ground, the operator of the San Onofre Nuclear Generating Station, also known as SONGS, announced Monday the resumption of transfer operations at the now-shuttered plant. The restart comes two months after the U.S. Nuclear Regulatory Commission gave Southern California Edison, or SCE, the green light to continue moving the canisters from wet storage pools at SONGS to a newly constructed dry storage facility on the plant’s premises.