[Merrill]

The Chinese are also able to build high-speed rail systems, while the US is not. https://en.wikipedia.org/wiki/California_High-Speed_Rail

Also consider continued spending on projects to send men to orbit/Moon/Mars etc, but which never seem to actually get anyone anywhere and are reprogrammed and rescheduled every few years.

Then there is the USS Gerald R. Ford aircraft carrier, first started in 2005, keel laid in 2009, launched in 2013, expected to be deployed in 2020 once all the bugs are worked out of things like the electric elevators. https://en.wikipedia.org/wiki/USS_Gerald_R._Ford