How can I extract URLs from plain text in Perl?

Perhaps you want URI::Find which can find URIs in arbitrary text. The return value from the code reference you give it produces the replacement string for the URL, so you can just return the empty string if you merely want to get rid of the URIs.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.