you should read this....
Questions about Huma Abedin - Andrew C. McCarthy - National Review Online
"Now, I’m perfectly willing to believe that McCain may not know what the words “unspecified” and “unsubstantiated” mean. That, however, would not excuse his use of them in this context. The ties of Ms. Abedine’s father, mother, and brother to the Muslim Brotherhood are both specific and substantiated."