US Secret Service - the United States intelligence agency that protects current and former presidents and vice presidents and their immediate families and protects distinguished foreign visitors; detects and apprehends counterfeiters; suppresses forgery of government securities and documents.
It's  blessings not blessing.. The entire clause is ...to secure the  blessings of liberty to ourselves and our posterity....    The blessings of liberty refers to all of the benefits that are  afforded by having liberty.
Before we can create meaning in our lives, we have to be aware of our responsibility to our selves and to others. We alone are responsible for our lives; our physical, metal and emotional wellbeing.It is therefore up to us to create and to define a purpose or a combination of purposes that we find meaningful.efore we can create meaning in our lives, we have to be aware of our responsibility to our selves and to others. We alone are responsible for our lives; our physical, metal and emotional wellbeing.