The supporter of the president´s executive privilege say that he can shield sensitive information from Congress if there´s a risk to national security, or his acts to preserve US national security exempt him from legal liability, enjoying legal immunity.
When a plant has been without water for a long time, the central vacuoles lose water, the cells lose shape, and the whole leaf wilts. Plants often store sugars, ions, some proteins and occasionally pigments inside the vacuole.