What message do both the book and radio play of the war of the worlds attempt to share with their audience?

War of the Worlds played with the fear of the known, like the war and invasion, and the unknown, like the things that come to Earth. One of the messages that you can collect from it is "what "our" people will think is they were invaded like our people invaded other communities/civilizations?"

The fear of the people to this story is clearly shown after the panic and hysteria that a radio play caused in 1938 between their listeners.

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.