The greatest need the world is not to end Kony2012, nor to find a cure for AIDS/HIV, or even to end world hunger. Those things are surely important, but they are not the greatest need.
The GREATEST need the world has is to know CHRIST.
There is no other hope to be found.
There is no other peace to be had.
There is no other joy to be experienced.
There is no other water that can truly satisfy.