A jury in New Haven, Conn., has convicted a former American Navy sailor of leaking details about his own ship’s movements to suspected terrorist supporters. We can only hope that the sternest possible penalties are assessed against Hassan Abu-Jihaad for his treasonous behavior.

He was accused of providing material support to terrorists and disclosing classified national defense information. Federal prosecutors say the 32-year-old sympathized with the enemy and admitted disclosing military intelligence. Naturally, his attorney said an investigation failed to turn up proof of the charges even though the defendant admitted at least some of his disgusting behavior.

One of the most cowardly acts anyone in the armed forces can commit is doing something that puts at risk the safety and security of comrades in arms. Especially during a war, such as the current war on terrorism. There is a proximity to data and secrets that can easily aid and abet an enemy. Anyone who has access to such information and uses it as Hassan did should be hit hard by the system.

If the man truly had deep feeling about his role in the Navy, he should have admitted his leanings and then left the service. But to go on duty regularly and use personal access to secrets to undercut those around him is a travesty.

There can be no defense for such deeds, and those who commit them need to realize they deserve little mercy in their judgments.