{"version":"1.0","provider_name":"Harvard Gazette","provider_url":"https:\/\/news.harvard.edu\/gazette","author_name":"harvardgazette","author_url":"https:\/\/news.harvard.edu\/gazette\/story\/author\/harvardgazette\/","title":"Exploring the shadows &#8212; Harvard Gazette","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"c5awLNxNAX\"><a href=\"https:\/\/news.harvard.edu\/gazette\/story\/2008\/02\/exploring-the-shadows\/\">Exploring the shadows<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/news.harvard.edu\/gazette\/story\/2008\/02\/exploring-the-shadows\/embed\/#?secret=c5awLNxNAX\" width=\"600\" height=\"338\" title=\"&#8220;Exploring the shadows&#8221; &#8212; Harvard Gazette\" data-secret=\"c5awLNxNAX\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/news.harvard.edu\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"\u201cIf you wouldn\u2019t tell Stalin, don\u2019t tell anyone else!\u201d In the early years of the Cold War, a billboard near an atomic bomb testing site in New Mexico urged passersby to keep research developments close to the vest. Secrecy was of the utmost importance in that era \u2014 and not just in scientific circles \u2014 as Americans nervously watched the Soviet Union expand its influence throughout the East."}