Why is the politican hiding behind a sand bag wall

Maybe the politician is afraid of being shot. Sandbags can stop bullets. When a bullet fires into a sandbag the sand cant move out of the way fast enough so it's as if the bullet has hit a solid object.

Um well north korea is a very harsh place because students go to school for 24 hours and almost never rest and the president is well i think sends to much bomb that’s what i think