Originally Posted by yyznomad

Once you get off your flight, look for International connection signs (and don't exit airside - stay airside!) and you will head towards the area behind Gate 50/51 where there will be an agent doing document/passport checks to allow you into the international side. No need to go through security again when doing this. It's quick and easy.

If you exit airside for any reason, you will then have to reclear security on the international side after walking all the way around ground side of departures terminal.