<text>  A Muslim terror convert who tried to take his new-born baby to Somalia is suing the FBI and his own mother for conspiring to stop his on living in Jordan with his wife. Zachary Chesser, of Virginia, was sentenced to 25 years in prison for attempting to support terrorist groups after his name appeared on the no-fly list at an airport in 2010. The 25-year-old had been on law enforcements radar after posting threats against the creators of South Park for cartoons he felt insulted the prophet Muhammad. Zachary Chesser pictured, of Virginia, was sentenced to 25 years in prison for attempting to support terrorist groups after his name appeared on the no-fly list at an airport in 2010 . He was arrested as he attempted to leave America to join a terror group in Somalia - hoping that taking a baby with him to the airport would make him appear less suspicious. Chesser now lives in the Supermax prison in Florence, Colorado. His wife, a Ugandan diplomats daughter named Proscovia Nzabanita, had to leave the United States in early 2011 after pleading guilty to lying about his plans the year before. The fate of their baby, Talhah, now five, remains at the center of a dispute being heard in federal appellate court this week. Chesser is suing the FBI and his own mother, alleging that agents interfered with his parental rights by conspiring with his mother and her partner to ensure that the boy could not travel to Jordan to live with his wife. Instead, the boy is being raised by his mother, Barbara Chesser, a senior lawyer in the Office of the Attorney General in the District of Columbia, and her partner, who is also named as a defendant. Chesser was behind bars and Nzabanita was facing deportation when his mother initiated custody proceedings, but both still enjoyed full parental rights, and they opposed placing the young boy with his grandparents, who did not share Chesser and his wifes conservative Islamic beliefs, his court-appointed attorney, Wayne LaFond, says in their appeal. But Chesser is not seeking custody. Instead, he wants monetary damages. Chesser and his wife planned to travel together to Somalia where he would join al-Shabab extremists file picture of al-Shabab fighters Talhah was born in November 2009 to Chesser and his wife, a woman he met at a mosque in Washington, DC. They planned to travel together to Somalia where he would join al-Shabab, but Nzabanitas mother hid her passport. Then, in the summer of 2010, they tried again. This time, Nzabanita dropped off Chesser and the baby to make the trip without her. Soon, they were both arrested. Chesser was facing a lengthy prison sentence, and Nzabanita struck a plea deal requiring her to leave the country, likely for good. According to Chessers complaint, agents monitoring his prison conversations in January 2011 tipped off Barbara Chesser that the young couple was making plans for a friend to take the boy to Jordan and join Nzabanita there. Chessers complaint states that agents went to the airport to stop that trip. Soon thereafter, Barbara Chesser won full custody of the boy after a judge declared Chesser and Nzabanita to be unfit parents. LaFond argues that the FBI had no business disclosing the content of his conversations to intervene in a family custody dispute. Prisoners largely lose the right to keep secrets from the government, he wrote, but they retain the right to keep those secrets from those outside the government. Jailed: Chesser pictured now lives in the Supermax prison in Florence, Colorado . Chesser was acting as his own lawyer when he first sued, in 2013. Judge Liam OGrady dismissed that complaint, which remains under seal, as delusional and irrational. Chesser then amended his complaint, saying the essential facts remain accurate. It might not be particularly normal for the FBI to become so involved in a child custody proceeding ... but the scenarios described in the amended Complaint are far from fanciful, he wrote. OGrady again dismissed the lawsuit, saying Chesser had no expectation of privacy for conversations that occurred in a prison setting and therefore no reason to object when the FBI disclosed the conversation to his mother. The 4th US Circuit Court of Appeals in Richmond appointed LaFond to handle Chessers appeal. Nothing alleged by Chesser is irrational or incredible. Chessers complaint alleges that government agents misused confidential information they had gathered about him, LaFond wrote. Lawyers for the FBI agents want a ruling that their actions are completely legal. They wrote that no precedent exists remotely suggesting that the disclosure of a parents travel plans for a child can violate the parents constitutional right to privacy, especially when the disclosure revolves around plans to relocate a child out of the country ahead of a custody hearing. Barbara Chesser did not return calls seeking comment. This damages dispute is just the latest turn in the saga. Addressing Chesser at his sentencing in 2011, OGrady said he took just a shocking leap from a high-school athlete to a highly energized traitor. Chessers lawyers described a young man casting about for an identity, throwing himself headlong into whatever hobby consumed him. He joined a Korean breakdancing team, and became so fascinated with Japanese anime that he spent four years studying Japanese and traveled to Japan on a school trip. Then, he converted to Islam after becoming infatuated during his senior year with the daughter of Somali immigrants. That ended when he demanded they marry. Chessers divorced father said his son became so radical, he was even wearing some type of loin cloth in place of underwear. Chessers name resurfaced earlier this year when the FBI named a close associate of his in northern Virginia, Liban Mohamed, to its list of most-wanted terrorists. 