A senior U.N. official cautiously welcomed news that an anti-piracy force is being created in Somalia but he and U.S. officials say they're concerned about secrecy surrounding the undertaking. An unidentified Muslim country is backing the project and is paying an ex-CIA man and a former senior U.S. diplomat...The military force...is expected to number up to 1,050 men...Alan Cole...said he wants to know...the laws governing the force, how recruits are screened and the chain of command...The U.S State Department...raised concerns that the training may break a U.N. arms embargo on Somalia...Lt. Col. Tamara Parker, a Pentagon spokeswoman, said the U.S. is aware Puntland authorities are contracting with a private security company...Pierre Prosper, a former U.S. ambassador-at-large for war crimes issues...said Saracen International is the contractor...Uganda-based Saracen International was also identified in a letter and a statement from Puntland's government...But Bill Pelser, the chief executive of Saracen International, denied his company is involved. Pelser told AP he made introductions for another company called Saracen Lebanon. Lebanese authorities have no record of a company called Saracen and Pelser did not provide details. [also refers to Hart Security]