By Daniel Wiessner (Reuters) -A U.S. appeals court on Monday struck down California’s ban on privately-run immigrant detention centers in a challenge brought by private prison operator GEO Group Inc and the Biden administration. The San Francisco-based 9th U.S. Circuit Court of Appeals said California’s 2019 ban gave the state too much control over how the federal government handles immigrant detainees. A federal judge in San Diego had upheld the state law in 2020, ruling that California could prohibit private detention centers because federal law does not explicitly allow for them. The 9th Ci…