Hi there,
Various sites being build today are trying to build sites where source code can't be read(using view page source.)
Some examples are that sites whence loaded you can't proceed further until you can't disconnect your internet. These sites also include feature to disable page source.
But source code can be read in some other way.
(Obviously site must have been dowloaded in the above case, on your computer.)
So source will have to be sent to the client. But features like above can be added.
Cheers.
shukas1995