aranpura,
Great work. I am happy you discovered the wonderful art of site scraping

Can be a lot of fun. One suggestion: The Nation also offers a print version of each article. So when you parse the main content page, simply replace all article links with the print version.
E.g.
http://www.thenation.com/doc.mhtml?i=20040927&s=legum
becomes
http://www.thenation.com/docprint.mh...040927&s=legum
(a small regex replacing /doc\.mhtml with /docprint\.mhtml should be sufficient.)
Anyways, keep up the great work!