CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "aadn.gsd.harvard.edu",cType: 'managed',cRay: '91cdcce16a4a81ef',cH: 'cF1oQ9Ac4O4ryti.fomkQmixWO0MfCQoFYch5mZPKlI-1741389383-1.2.1.1-38jJW27iUCqCzlEExgb5b.cs1pxj8Aahs7zLHLfZmYOjv7IrsQuUBqW8qT_Tg5gr',cUPMDTk: "\/news\/page\/2\/?__cf_chl_tk=VHhR8TCFUfFLOUq6.cin.hrI7ZIt7hLmGnMMmYWwF80-1741389383-1.0.1.1-dOooqyULA72GVLD9KuGDzLp2B5877Ee4EXJSg9iAaEQ",cFPWv: 'g',cITimeS: '1741389383',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/news\/page\/2\/?__cf_chl_f_tk=VHhR8TCFUfFLOUq6.cin.hrI7ZIt7hLmGnMMmYWwF80-1741389383-1.0.1.1-dOooqyULA72GVLD9KuGDzLp2B5877Ee4EXJSg9iAaEQ",md: "v3fKeyqjWBivjxK8m3ImR8oEZ5WBXGtFlbOG6MkSVZI-1741389383-1.2.1.1-yMOBAVdDYEoqr0FlwAIlI4ER_pjtnST33WWezpjkfLheU.7DVlSPpXpdI2SvC8yypS5cHgKXkUdSxfTP3gzimmfR7ZHRcQmzLVQcweQ9gTGOocKvKvM7URYL9pnNkqy.4FJKfjYWfnPJe8qq_9cbQepTL4cTViikPTWle7cjcKTxQhp117pyFE4nahNFBaDJH6p.YzlgpKAwwrHL8hAgTPxcev8b3HPAaaRdJKglhUlZoHFLVhl3uYt9__TE5FLk5ppVJS89UKl5bFyjqL0MW4lPYVYUgKtWMMN7EIjhEw.Iy6kr63hKTT8374P.5wuoHpK2nW9MCaSUAVJey1fHU7IQceeFAvg39I3akby306r3VGAdI71qGZ_11qAwj.zCTEfi2rDJvIR49enRg6_4Gr3PCW7.zrDFZ0OApzYIXBuF_zX1zsQuyPdk0NTbF2EbK26xpQ1ZEl_0uB86y4APUHn0oEYm_ecNDcQ5JtX5ct.eFC_qAlpVDKKrjR9LlF.lsF7QrHfQfqdoMpDaQdxmxi7sUJvpHTrQEiBxntho2rN_vwqEbRSP3Uaq403_W7rtps9bjBeN7BLGc16XrpsWnGFVHAvvUXH_i0WwoVsE1I5VO4ZutWe.L9xFKdLCr8FYVkDYPHAB4uGKQGj4_L_LsdGXiMN2338RqkfUosdS5FI4W9ua1ARL7Vf5zi2WJO.j.ipBFNjQkzGSCRoCfsxzW63rPJasfoFbLXHgnHUtDHZYLsb13TRDv4Xsl2xdSTMKIP3sVe4hyXcol4BCNiqwfd3ke0wK6JKni2Ew_WUmdwQU_OY5WbWY2BcHTarhjVqdxVrGGABVpNGV3zCJx9tPBE3vx2YkhcU8JxmObiv90_EXh8toBZ7L6Ak.r5pEZoNHxAdOHFR64ncwaXgQoJEC11jiJMZYLZPJMWtTNSvSP1gmjEW8tfLzoF1ntPtmW6hSRRNyniOUaKl1uqRLHGiu9OOAP7oBi7Wan5lNWtLcQDbmzFIC3ElFCNyF6cDOmigXJwvV_QZf0HAVrQnhEXOZ1BmIfDGEX1eDFjlmVd3HFBmy9fK1mvmaFtNTE42TCx6egFOEBPmEipn2XAmd89sBeDeQKsI998ONSvCNzrHfz0fL5BS9ACOxIuwKCg02stHbigzG6e7BIqCR8ITX8pSbiiHyLII4hWFCztPLSMMPo4NDoUMKtNlGBnLEAYPcXQtIILpFKihpBENJ20GdZwnaA9FbJfgXevhDg_fG789j.oyleNBmVm_msuwAhz7pUcbu",mdrd: "JiVxMzVK.0vueG6U2GQKKNW1w5YfGdKeXBIxUW6JEAM-1741389383-1.2.1.1-9PB9oM0qCbU77UIe9V4CXLy8o4jM8XQtSOpOIAxz0nGw4DLFffJXS4miGuDhdh5Yy2l.0eoFA_AOJmibJM4aj0XrHo2G4IHQxP3MiQeLDkp_n4DyP1tQyiKJs0poRuzoLQt.VmodETxZAJdqk.R5XzjbqjQeOw0hK120t4SF2CNk0Qx9b6eHCB35chxc_TTFA7F0KZCw54x1wptvmgxwGd8xRe4d65TYPuZkY_9C.9ZfIEKeXVMTPexZX23fZXCXbQNuwNZvzvWBSqGumbMR4G84lYvRYNkwf5d6_.v2UM1ZQYw8h9sWmDTTHIqrWATV9ONa0IK1hABNwbGP7QaylHqHOU4kNJJL.sJK9rbUchkxJvuLNtbX06Wksf9elAoWsio8IvFoH_.nAoLcE6V4q1ljAUf9vBs9AXkgf9WpdxDUwjHSkx1gqJLpzJtgiyWWFarJXTV6mYxAhktLbh4AIxtv3Kb_I7wHzKMCZy6lnF.hjxVvW5Os8N9p7DN.JZ48AhjJJyi4_aLJeH00H3yHvVAB9QkHBFxHqUbRMoegVDoIwRlxNriEZpZQh7cNSWTuIKE8i4Z8fJ6a_7TmC5g2Y18PJkXC0S7Zmpy9FO6C7JMjSRcp1LbhxZ.q4tpzZPkH8H5kKVF27itdia3bld4yaFxs3X4tl9kOuNW7izK_GGA8pxnDyJyd5yCwiA11uVNAgaQsia5lKvIIoiEN8B3lK3LzKZek5JCJxaLSGv6lQQjS0K7TGVGNmSuF7yW9vQpntPFVYJgxoxD26EyMtCPHbcQDUbdpc5zFSuZOWTVxA6taOSMllz2eubES_5Wut7bbNI577wNGQxc51JLkd8.uG2XZOS.78q8t8H4m0WdVUsK8rjYJRBtPiJQlak4zZ4qcxoCIU8hC9iHlZGBzUY6HI1uXTh21LbIGLQQDXM7DTVLp63uNCWfRtxxMs0h9t82F8EwkkD3mvPdIcX99hj477yqLgQpAPnJQsj.8WSf0MF7tZy1w7a31JrZtCoq1O9zRsNfumiuGcLm1L.R_zg4z3X6k88gPvYB1PlMZFCGVR2f0FQk4Cetr042_JeWAr_0xBYHSKLY.NrgxKd9cmUptpRgFEni3wqQ2eXQUFQxEyEsV4ZprD3kKMy969Zqglc3LdCZ5T9c0i.cHhQ42zLBEpjCGscsQYPG_PIdJWUi7.owp3Fws3pmTvHB_G3sMFywMSCBgEMz_CPZQMhe97JDrV6wjiwzuXvN5.bGSHXq1otdo0wugl2_GtqMis2bLKkhlLl_b6lVp4p2RlABko7OEQ7FJXsyAEPN3CSscwmhZBZIpv7nzk0ycNastI6O1dXDYwexr8gRb1iJrrLA8EqFQ0kpB3.9fN3M9cBsHbqsP9Pg14dF8vwlKbsQ410skACYZiQ5TDYp8ZtU5Ugaw9WVlA7X4nXU4pl.v4FvkZOb3KMBpNhhDxUk1yLQJzkd7nodF541A6y7NqmzJRliaoyZpNtgWW13vwJoNieJE1Xa5dZ_dvxq47dUPTHnzoX0_CZUgwnLnQpoCwdAF.M5PvBXmLxdPdWybAGBmip1n1ATpN_XHWXra.bXmWhUe6SRZbkWOOmxV25RRoqMSXbM9LUPovoVEB_6oqHIfy8J77pk90IsneZ_vZLZeLHNleqG6hyIB8_PT0sd2z79VPNSxNRthEB3Ad2hTYnYrDDaHL11BA92hqzkVG2LwSCDHYdCyB6_uLm0t366DcRiN8.xBiTASVVrUJvC.Rn7nx3wKRYm7vk.BU9V5e9qoFcOLcVLNG_pv2QlChfF9ps4G8A66xlm7NcFkR1DuY_2kVHvmb1h0ialxaHyzwMBuqMzYrOzuYDpaKomnAKjI2iCqXcaCGjL3A8LwNjnmsmmKHTbOLBKvtefD4hnba3Q4XiuKU3nohcE_B1LKJ81rwf3oxavuJuHPgst5ecQsnBZVxG76QOefh8W2tIr99CASyFw8ewlgV4Eldip0vqNuw7EtqOHFHKRo4w"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=91cdcce16a4a81ef';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/news\/page\/2\/?__cf_chl_rt_tk=VHhR8TCFUfFLOUq6.cin.hrI7ZIt7hLmGnMMmYWwF80-1741389383-1.0.1.1-dOooqyULA72GVLD9KuGDzLp2B5877Ee4EXJSg9iAaEQ" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>