KARACHI, Pakistan—Pakistan’s government on Friday appealed to the Supreme Court to review its decision to free a British-born Islamist and three others convicted of beheading U.S. journalist Daniel Pearl, a day after the United States expressed “deep concerns” over the ruling. A panel of three judges of the court on Thursday acquitted Ahmad Omar Saeed Sheikh and three other Islamists, who had been convicted in 2002 on charges of kidnapping and murder of the Wall Street Journal reporter. The court ordered the men to be released forthwith if not required in any other case. The government in southern Sindh province filed a petition asking the top court to review its decision, the Pearl family’s lawyer, Faisal Siddiqi, and a government prosecutor told Reuters. “We have filed three review petitions,” prosecutor Faiz Shah said, explaining that the petitions would seek a reversal of the acquittal and the reinstatement of Sheikh’s death …