Incredibly fake video. Not only would they never put the subtitles right over the person's name and title like that, if it had really happened, they would have cut the laughter short. The biggest giveaway though is that "Kevin Systrom" suddenly has a massive Dutch accent.
Handily, the news networks over here keep an online archive of all news broadcasts, this one included: http://nos.nl/uitzending/61768-nos-journaal-1200-uur.html (at 6:05). No Kevin, no laughter. Also whoever did the youtube video grabbed the overhead shot at the end from the beginning of the original video.