Huawei , the chinese telecoms company , has launched an aggressive counter-offensive against the us government , saying it is high time the us detail " unsubstantiated " national security concerns in the wake of a decision to block the business from building a national emergency communications network .
This does seem rather a vague palliative , however , and mr osman 's occasional resort to unsubstantiated facts and dangling assertions does not help his argument .
It is important to point out that the latter group causes more anxiety for hoteliers , it seems-particularly when it comes to unsubstantiated negative comments from " guests . "
There are two efficient market hypotheses . One is the bold , unsubstantiated proposition that financial markets are close to perfect and all-knowing .
