Major media reported their cute  "human interest" story that John McCain did not know how to use a computer, had never sent or recieved an email and did not know how to surf the internet. This is not cute, this is serious news. This is a significant deficiency in John McCain's ability to keep the U.S. safe from foreign attacks.  
Our National Defense the very security of our people and economy depends on safely securing U.S. Cyberspace. 

Last May Brigadier General Jeffrey Horne of the U.S. Strategic Command warned China poses a growing threat to the United States and others in cyberspace he stated that "cyberattacks are perhaps the most significant 21st-century threat" and said China was "increasing its capability to carry them out. "Colonel Gary McAlum, of the command's Joint Task Force for Global Network Operations, said "several Chinese advances had surprised U.S. defense and intelligence officials." McAlum cited a new report by Kevin Coleman of the Technolytics Institute, a consultancy based in McMurray, Pennsylvania, as saying China aims to achieve global "electronic dominance" by2050, including the ability to disrupt information infrastructures.

Cyberspace is the new battlefield. If John McCain's boasts are true he will keep our military and intelligence agencies busy dropping bombs in Iran and Russia, while the real threat, China is sneaking into the U.S. through Cyberspace. John McCain is an old warrior and an expert on dropping bombs. Unfortunately While dwelling on his sacrifice in a POW camp in a war fought long ago, The rest of the world has advanced and moved on providing more dangerous threats through a technology that he freely admits he cannot understand.

Age can not excuse this his lack of knowledge nor does age make it cute.  We all know parents,  grandparents and other seniors McCain's age or much older quite capable of these two most simple of computer skills.

Then again, maybe this is an age issue. I just watched the following video. Scary stuff. Senior Dementia?  It's  not pretty and I feel sorry for him, but woe is us if he becomes our President.