Just use the Global Terrorism Database link I provided, and run an "Advanced Search" yourself. You can narrow/filter for TONS of stuff (ex. time period, region, country, perpetrator group, weapon type, attack type, target type, casualties and injury type or total killed, etc.) They even have a filter with 3 different levels meeting the "terrorism" umbrella criteria:
https://www.start.umd.edu/gtd/search/
Here are the expanded results for (subsequently ranked the "fatality" column in descending order):
- USA
- 2000-2010
- Any definition of terrorism, unsuccessful or successful
https://www.start.umd.edu/gtd/searc...Fatalities&od=desc&expanded=yes#results-table
That's every (domestic) terrorist attack resulting in a fatality on our soil from 2000-2010.
Add it up.