What is the corruption Ronald Reagan is hiding in his Berlin Wall speech? What is the bad thing he's hiding?
First of all, that's a loaded question. There's the assumption he was hiding something. Only by reading his speech and understanding the history of that time will you be able to come to your own conclusion.
Read, read, read ... and take notes. Let us know what you decide.
http://www.google.com/search?q=reagan+%22berlin+wall%22+speech&oq=reagan+%22berlin+wall%22+speech&aqs=chrome..69i57.8975j0j7&sourceid=chrome&es_sm=122&ie=UTF-8