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![Tanja Porčnik presents her co-authored report "The Human Freedom Index 2017" at the Republikon Institute](https://object.cato.org/sites/cato.org/files/styles/multimedia-listing/s3/multimedia/2018/porcnik-republikoninstitute-9-20-18.jpg?itok=LadJVuDU "Tanja Porčnik presents her co-authored report "The Human Freedom Index 2017" at the Republikon Institute")
![Jacob T. Levy gives a lecture on "The Concept of Liberty" on C-SPAN 3's American History TV](https://object.cato.org/sites/cato.org/files/styles/multimedia-listing/s3/multimedia/2018/levy-cspan3-9-19-18.jpg?itok=HnXAxnyE "Jacob T. Levy gives a lecture on "The Concept of Liberty" on C-SPAN 3's American History TV")
