Everybody's business is nobody's business, and nobody's business is my business. what is this meaning?

What is the meaning of [everybody's business is nobody's business] Matters that are of general concern,but are the responsibility of nobody in particular, tend to get neglected because everybody thinks that somebody else should deal with them.

Explanation:

acts of terrorism occur globally. the united nations global counter-terrorism strategy was created in order to build adequate systems of support and solidarity with victims of terrorism. here´s a summary of the proposed key themes: the importance of giving victims a face and a voice; protecting their dignity; giving victims legal status and defending their legal rights; providing victims with medical, psycho-social and financial support; building solidarity with victims; improving media coverage of victims; and focusing on the link between victims and counter-terrorism efforts more generally.