Although this is true, learning that there is a specific physical sign in the brains of those who have suffered blasts at close range, and that this sign is not

Although this is true, learning that there is a specific physical sign in the brains of those who have suffered blasts at close range, and that this sign is not present in those who have suffered other forms of stress, is a significant breakthrough! The article presents this as an issue of physical vs. psychological, but even stripped of that misconception it's still an interesting article.