It meant that they couldn't poise them. It didn't mean that these couldn't fall in; they had some friction that was stopping it from being poised. It was a fail-safe situation.
On June 18th, 2009. See this statement in context.
On June 18th, 2009. See this statement in context.
As an Individual
It meant that they couldn't poise them. It didn't mean that these couldn't fall in; they had some friction that was stopping it from being poised. It was a fail-safe situation.
See context to find out what was said next.