CS Ranking in USA

US News has recently released the new ranking for CS programs in USA. MIT has taken the #1 spot. Purdue is #19. For me, this whole ranking thing is a very subjective measure - for example, a university ranked low may be very good in a specific area of CS..

PKC - inventors?

Until today, I thought Diffie and Hellman are the only people behind the invention of PKC (Public Key Cryptography). I was proved wrong after reading this post. We seem to have sufficient evidence that Merkle should also be credited for the work on PKC.