We ought to support NAMI (http://www.nami.org/). They're a large, slowly growing non-profit organization of doctors, families and researchers that is trying to get the US to shift the way it deals with mental illness from the bottom up: identification, treatment, support, public perception, everything.
Protip: This would also help with our mass shooting problem, too.
Protip: This would also help with our mass shooting problem, too.