The US government investment in research in nanotechnology, among all the different agencies (e.g., the Department of Energy, the National Science Foundation, Health & Human Services, NIST, etc.) will total $2.1 billion in 2012, according to the National Nanotechnology Initiative (NNI).
That's close to a 15% increase over spending in 2011. It demonstrates the commitment of the US government to remain in the forefront of nanotechnology research. Read more here: http://www.nano.gov/