As of January 2013, none of the research submersibles supported by the US government were operational, according to Newsweek. Funding for the NOAA Undersea Research Program (NURP) was zeroed in the Fiscal Year 2013 budget.
In May, however, we saw two homebuilt submersibles at Maker Faire in San Mateo. As government funding for ocean exploration disappears, citizen science may take over. Perhaps this is a portent for the future of space exploration?