launch unmanned aircraft from just about any place in the world. the next test comes this summer when the navy tries to launch the drone from a moving carrier. more praise for angelina jolie after her double ma mastectomy. to reduce her risk of breast cancer. her partner, brad pitt calls her decision "absolutely heroic." how they kept the secret so long is remarkable. they apparently told close family, jolie's father, john voight, the operations jolie had have been improving over the years. >> technology improved to make breast reconstruction much more natural looking. the first is the highly cohesive silicone implants, referred to as gummy bears. they are highly cohesive silicone that hold their shape. >> some doctors are careful to point out, jolie's surgery is not for everyone. only makes sense for a small category of women. medical headlines now and a surprising report on salt. we heard warnings about too much salt in american diets. now there is a warning that for some people, too little sodium could be harmful.