Russia Ukraine war, page-73199

>It was a Russian pig , a pipeline inspection gauge, that carried the explosives.

1)Review this footage.

Note how at about 2 o'clock the pipe is curved inward? It was blown externally.

2) If there was any evidence that it was blown from the inside the three countries who have so far investigated would have mentioned it, as it supports the "Russians did it" narrative.

3) Pigs are motivated down pipes by the movement of product. Germany would have said something about having gas delivered.