Modern technology

I must say I was impressed with the way the state officials in California sprung into action to prevent the Damm in Lake Oroville from collapsing and washing away 5 or 6 towns downstream....If you missed it, Google it.....Makes me proud to be an American.....Such innovative advancements in the year 2017.....They used a flying contraption that was able to hover over the break.....A helicopter I think it was called.....And they dropped burlap sacks filled with rocks into the gaping hole.......What will modern man think of next.