May 10, 2011 1:37PM 

# Tuesday Links 

By Cato Editors 

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- A new Cato [study](https://www.cato.org/pub_display.php?pub_id=13089) answers the critics of comprehensive immigration reform.
- National unity is highly [overrated](http://washingtonexaminer.com/opinion/columnists/2011/05/national-unity-highly-overrated-ambitious-politicos) — and not a founding principle of the United States.
- Yet more [wasteful ](http://blog.tenthamendmentcenter.com/2011/05/more-hud-community-development-duds/)expenditures by HUD.
- The U.S. needs to limit its role in Afghanistan, and its bilateral relationship with Pakistan.

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