Only G-d knows for certain why these kinds of things are happening.
However, that is not an excuse for us not to try and give reasons so that we can be aware of our issues and work on them.
Reasons offered:
Internet abuse
Modesty abuse
Evil speech
General Immorality
It seems to me that the study of ethics can remedy in part all of these issues. There needs to be an upward thrust of fear of Heaven.
May G-d protect his people.