1.0American Civil Liberties UnionAmerican Civil Liberties UnionHolder v. Humanitarian Law Project | American Civil Liberties Unionrich600338<blockquote class="wp-embedded-content" data-secret="vFWc7abeIs"><a href="/cases/holder-v-humanitarian-law-project">Holder v. Humanitarian Law Project</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="/cases/holder-v-humanitarian-law-project/embed#?secret=vFWc7abeIs" width="600" height="338" title="“Holder v. Humanitarian Law Project” — American Civil Liberties Union" data-secret="vFWc7abeIs" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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Whether the federal law criminalizing material support for terrorism is unconstitutionally vague because it is unclear whether it extends even to speech opposing terrorism so long as it is directed at designated terrorist organizations and, if so, whether the law violates the First Amendment as applied to such advocacy.