Between 1940 and 1996, the U.S. spent at least $8.75 trillion in present-day terms on nuclear weapons development, including platforms development (aircraft, rockets and facilities), command and control, maintenance, waste management and administrative costs.he United States is one of the five nuclear weapons states permitted to maintain a nuclear arsenal under the Nuclear Non-Proliferation Treaty, of which it was an original drafter and signatory on 1 July 1968 (ratified 5 March 1970).
Although there are several forms of colour blindness, as Aaron Priven noted, the inability to distinguish red from green (red/green colour blindness, natch) is the most common condition. Probably around 5% of men in North America are red/green colour blind (compared to less than 1% of women).
Ninety-nine percent of people with color blindness have difficulty distinguishing between red and green. The absence of one pigment will cause red-green colorblindness. The absence of two pigments will make it difficult to distinguish between blue and yellow as well as green and red. Achromatopsia, the rarest kind of colorblindness, involves the absence of all three pigments. People suffering from this form of color blindness can only see in black, white and gray.