article_snippet: Heart-stopping camera footage has been released of two gunmen calmly strolling through Tunisia's National Bardo musuem in the terror attack which left 23 people dead.
article_snippet: The one-minute video posted on the government's Interior Ministry Facebook page shows the two men scurrying through Tunis museum, carrying assault rifles and bags.
article_snippet: Sinister: attackers in the CCTVencounter a man with a backpack walking down a flight of stairs in the museum - but let the visitor escape with another man life before carrying out the terror attack .
article_snippet: Chilling: attackers in the CCTV Tunis museum pass another man before unleashing the  terrorist attack that left 23 people dead .
article_snippet: Dark: The two armed man pictured on CCTV footage strolling through the museum before the terror attack .
article_snippet: Armed: The two unidentified men are seen inside the museum before the terror attack .
article_snippet: Hostages flee the National Bardo museum during the Tunisian special forces raid which ended in the death of both gunmen .
highlights_snippet: Footage released of gunmen calmly walking inside National Bardo museum .
  