(April 16, 2019, 1:39 PM EDT) -- AUSTIN, Texas — The Texas Supreme Court on April 12 said disclosing the source of execution drugs would create a substantial threat of physical harm to the source and its employees and need not be disclosed by the state government (Texas Department of Criminal Justice v. Maurie Levin, et al., No. 17-0552, Texas Sup., 2019 Tex. LEXIS 373)....