Papers frequently give the people who are featured in articles a chance to respond before the article is printed. it is a precept of responsible journalism:
http://www.journoworld.co.uk/Right_of_Reply.html
That only applies to criticism or direct allegations and doesn't typically extend to photographs used in profile pieces, IIRC. (I haven't read the Newsweek article, but I assume isn't not full of potentially libelous claims, is it?) Either way, an unedited, unaltered photograph like that cover shot does not constitute anything remotely close to defamation.