walk across Chicago
... that Nik Wallenda's walk across Chicago was telecast with a 10-second delay in case something went wrong?
... that <a href="./Nik_Wallenda" id="mwBbc" rel="mw:WikiLink" title="Nik Wallenda">Nik Wallenda</a>'s <b id="mwBbg"><a href="./Skyscraper_Live" id="mwBbk" rel="mw:WikiLink" title="Skyscraper Live">walk across Chicago</a></b> was telecast with a 10-second delay in case something went wrong?