79 sources, tagged and mapped to arguments, for every current topic.
Each entry has a tag, the full citation, what the source shows, which argument it supports, and a link. Open the source, select the words you will read, and the card cutter formats the card. We do not paste other people's text; you read the original, which is also what evidence ethics requires.
Sources verified September 13, 2026. Industry-funded and advocacy sources are labeled in their entries.
By topic
Affirmative and negative (or pro and con) sections, with block files for the arguments each side will hear.
Lincoln-Douglas: Outer space colonization is a moral imperative.
Twenty-two sources across philosophy, space policy, law, and science. The affirmative core is existential-risk reduction and the duty to future...
22 sources | September/October 2026Policy: The United States federal government should establish national health insurance in the United States.
Twenty-four sources. Affirmative ground rests on coverage losses, medical debt, mortality, and administrative savings; negative ground on federal...
23 sources | 2026-27 seasonPublic Forum: The United States federal government should enact a moratorium on hyperscale data center construction.
Twenty sources. The pro core is electricity demand growth, cost allocation, reliability, and the wave of state action; the con core is the 2026...
20 sources | September/October 2026Big Questions: Technological progress has surpassed humanity's ability to use it ethically.
Fourteen sources. The affirmative core is the documented gap between AI capability and governance in 2025-26; the negative core is the institutional...
14 sources | 2026-27 seasonHow to turn an entry into a card
- Click the source link and read the passage in context. Confirm the finding says what the entry says; if not, tell us.
- Click "Cut this card." The card cutter opens with the tag, citation, and link filled in.
- Paste the passage, select the words you will read, click Mark, and add the card to your file.
- Export the file and paste it into your case document. Every card now has a real citation you can hand to an opponent.
Why no precut passages
Camps and briefs sell files of precut cards. We could paste passages too, but a student who reads a card without reading the source cannot answer questions about it, and copying passages wholesale is the kind of evidence practice that gets teams disqualified. Our library gives you everything except the paste: the finding, the citation, and the link. Reading the source takes two minutes and makes the card yours.
For thousands of ready files anyway, the case archive links the Open Evidence Project and openCaselist.
New sources by email
When a topic's library is expanded, usually after each NSDA release and after major reports publish.
Want a source you cannot find?
Tell us the argument and the format; a coach will find and log a source for it.