Mayor Michael Bloomberg says a military commission is a "more appropriate" choice than a civilian trial for avowed Sept. 11 mastermind Khalid Sheikh Mohammed (HAH'-leed shayk moh-HAH'-med).

Bloomberg addressed the issue Monday at an unrelated event. He says it's "probably more appropriate to do it in a secure area with a military tribunal."

When a plan to try Mohammed in New York was announced in 2009, Bloomberg took a different view. At that time he called it "fitting."

Bloomberg says New York City could have provided the security for a civilian trial. But he says it's better to be spared the considerable expense.