I suggest you also read WP:3RR - repeatedly adding the same material, rather than discussing it with others on the article talk page (Talk:WikiLeaks) is edit warring, and can lead to contributors being blocked from editing. 

As Smartse has already explained, your contribution is original research, as the material you cite doesn't discuss Wikileaks, and it is you that has made the connection. In any case, since neither Wikileaks nor Assange have any direct connection with the U.S., the relevance of the constitution is somewhat questionable, at least until any legal action is taken there - at which point, sources making the connection are quite likely to become available.