BALTIMORE -- A privately owned Ten Commandments monument may remain on display in a Frederick city park, a federal judge ruled yesterday. U.S. District Judge William D. Quarles Jr. concluded that no reasonable observer would think the 5-foot-tall granite marker is meant as an unconstitutional government endorsement of religion. Judge Quarles also found that the city's sale of the monument and an accompanying strip of parkland to the local Fraternal Order of Eagles (FOE) chapter in 2002 was proper. Plaintiffs Roy J. Chambers and the District-based Americans United for Separation of Church and State had claimed the transaction was a...