Many interesting questions come to mind. Here are my top four.
1. This "2750 metric tons of ammonium nitrate" has been sitting there in storage for about six years.??
2. Somehow this amount of this material was purchased and received and stored for a reason??
3. The conditions needed to make this energy release possible (from that substance) were evidently in place.--Stupidity??
4. The location of that port (in all of the world) just makes the first three questions more important to contemplate when asking them.
1. This "2750 metric tons of ammonium nitrate" has been sitting there in storage for about six years.??
2. Somehow this amount of this material was purchased and received and stored for a reason??
3. The conditions needed to make this energy release possible (from that substance) were evidently in place.--Stupidity??
4. The location of that port (in all of the world) just makes the first three questions more important to contemplate when asking them.