The judge in Manning's court-martial ruled today that a witness called by the government will not be allowed to testify as an expert about the monetary value of the leaked documents.
Though aiding the enemy is the most serious of 21 charges against Manning, there also are five counts of theft -- each saying he stole a thing of value worth more than USD 1,000.
Manning says he leaked documents while serving in Iraq in 2010 to expose wronging and help Americans better understand the war.