While I sympathize with anyone who feels taking his/her life is the solution to a problem, I doubt you would find much difference between the suicide rate of these soldiers and rates of suicide among non-military who work in high stress environments.
Would this be as news worthy if it the mayor of New York had a press release tomorrow stating that he was surprised to learn, among deaths in the city for that week, a few stock brokers did a superman out of their 43-floor office windows?
We're not perfect and we have our share of people who don't exercise good judgment when reporting the facts, but it's been my experience in almost 7-years of active duty that the U.S. military is just as (if not more) forthcoming about casualty information than any other large public or private organization. If security is at stake, sure details will be withheld--but that is perfectly justifiable. Sure, I'd like to know how a loved one lost his/her life, but it's not something I have an unlimited right to know!