```
Hank said the difficulties not only existed but were also insurmountable with the methods Yang Yi and his team had at their disposal; the idea of stealthily investigating everything and then striking like thunder was simply impossible.
Since they couldn't prepare everything and then steal the gold, they had no choice but to go in hard, blow up the walls, blow open the safe, and then snatch the gold and run.
Now the question was, how to blow it up.
Yang Yi pointed at the computer and said, "The walls are one meter thick, reinforced concrete structures. I want to know how to blow up this wall?"
Brian looked troubled, and after pondering for a moment shook his head and said, "I've studied explosives, but I'm not an expert. These walls are load-bearing, and with my level of expertise, if I want to blow up this wall, I would have to use a large amount of explosive. But too much explosive could bring the whole building down..."
