LONDON (Reuters) - British police have arrested two men after a break-in at Buckingham Palace this week, one of the most serious security breaches at the Queen's London residence in about 30 years. A police spokesman said one man was found in the palace in an area that is open to the public at about 10.30 p.m. on Monday. He had scaled a fence to gain entry to the palace grounds. He was arrested for burglary, trespass and criminal damage, while a second man was arrested outside the palace on suspicion of conspiracy to commit burglary. Both men were released on bail. ...