an end and it was impossible to say, "was a window opening?" or "was it only a moment in time before it shut again?" you learn pretty quickly that in iran there is plenty of gray area. an undefined territory. where is the line? it seems to change with barely a moment's notice. okay, here it comes. ♪ ♪ >> building employee: this is the first time that we have experienced such a thing. >> anthony: stand away from the glass. >> building employee: sir,