Here is a good criticism of PGP from 1999 that explains why it isn't usable by ordinary folks - http://www.cs.berkeley.edu/~tygar/papers/Why_Johnny_Cant_Encrypt

Here is a good criticism of PGP from 1999 that explains why it isn't usable by ordinary folks - http://www.cs.berkeley.edu/~tygar/papers/Why_Johnny_Cant_Encrypt/OReilly.pdf http://www.cs.berkeley.edu/~tygar/papers/Why_Johnny_Cant_Enc...