National Security Advisor is not an elected office. The President appoints a person to the position. As an appointed position, like so many others, the person serves at the pleasure of the President, who can ask for a resignation at any time. But there is no time limit to the position.
The National Security Council. Its membership is several top military people, the heads of relevant intelligence agencies, and several cabinet Secretaries (Defense, State, etc.), plus some senior presidential staff members (Chief of Staff, National Security Advisor, etc.)
Basically, national security is the president's responsability. He has a National Security Adviser appointed by him on his White House staff. He also is Commander-in-chief of all the US armed forces, and all the security agencies like the FBI, CIA, NSA and others ultimately report to him. He can through their directors appointed and fired by him, influence the way in which they operate and prioritize.
exampla ofcrimes against national security and the law of nation
That would be the Department of Defense. Some might argue that Homeland Security does this, but other are sure to argue that HS does more to destroy internal security than to defend national security.
This question cannot be answered because some of the budget for national security is not made public. It is kept secret from all but a small group of people who have a specific need to know about it.
The National Security Council (NSC) is responsible for making national security policies and decisions. Some of the players at this level are from the Department of Defense (DOD) and other Joint Staff representatives.
Brought in adviser's, and some troops later on.
The NSC acts as a special advisory group to the President concerning the National Security of the U.S. pertaining to Defense policies and diplomatic actions. Some of the primary members include the Secretary of State and the Secretary of Defense.
In Kenya, individuals do not acquire a social security number as they do in some other countries. Instead, individuals may have a National Identification Number (NID) issued by the National Registration Bureau. This NID is used for identification and documentation purposes.
Some documents that were leaked contained sensitive references to foreign heads of state. This could anger them into taking revenge on us, or worse. So to answer your question, yes, WikiLeaks can very well be a threat to U.S. National Security.
as close as you can get its safe, but local contamination is high in some areas
Forever - unless you have some sort of exemption.