The title of your thread is positively misleading don't you think?
"At this stage, we can find no evidence that they're unsafe"
No, actually it was the Chinese who were misleading in their handling of the whole affair.
Now, NOTHING can be trusted coming out of China and EVERYTHING is suspect since it is now a fact that there isn't a single thing some Chinese won't do to make a buck.
The best action would be to stop imports of everything and slowly start to let them back in one product at a time when it is proven beyond a shadow of a doubt that all products are safe.
Really Polly, when a Chinese industry will knowingly poison Chinese babies and ship mislabled antifreeze (DEG) to be used in children's cough medicine, how can you advocate ANY country trusting China ever again.
You can't even get indignant about that statement because you know it is true.