The NPR News article NASA: Debris From India's Anti-Satellite Test Raised Threat To Space Station discusses last week's antisatellite test by India described further in answers to India just shot down a satellite from the ground. At what altitude range is the resulting debris field?, and yes, as Jonathan McDowell's Public Service tweet tells us, "shoot down" is not what really happens. Instead, a compact object becomes "diversified" into many little pieces, each on its own new orbit and each capable of taking out a spacecraft or possibly even an astronaut.
China has performed such a test and there is still a large group of space debris objects being tracked as a result of that test.
Near the end, the article says:
The U.S. has also used its own satellites for target practice, shooting one down in 1985. It did so again in 2008, when a highly classified reconnaissance satellite malfunctioned shortly after reaching orbit. All of the debris from those tests is believed to have eventually fallen safely out of orbit.
In the new NASA video of the Town Hall with NASA Administrator Jim Bridenstine starting at
07:40 the topic is raised. While India's test and the 2007 test by China are described, the US' 2008 event isn't compared nor even mentioned so I thought I would ask here.
Question: How do the resulting debris fields produced by the US in 2008 and by China in 2007 compare to the one produced last week by India? Comparison should be in terms of risk to other satellites in LEO and/or the ISS.