The Federal Communications Commission does not know how many agreements exist between stations, making it impossible to judge their effects.
The PAC said that HMRC does not know how many reliefs exist or their cost.
We will not know how many species exist off Alaska until a major effort is made to combine and reconcile species lists and then "ground-truth," or verify, identifications using accurate, scientifically acceptable taxonomic guides.
While most of these countries have revealed some details about their weapons programmes, we still do not know how many nuclear weapons exist worldwide.
Following the Lords claims on Thursday morning, Lord McNally, the minister of state for justice and deputy leader of the Lords, revealed that the Ministry of Justice does not know how many superinjunctions presently exist.
42percentt of businesses do not know how many orphaned accounts exist within their organization.
We do not know how many natural products exist, but the Dictionary of Natural Products lists 170,000 known structures, which effectively represents today's universe of known knowns.
The researchers do not know how many Australian humpback dolphins exist, but suspect that there are unlikely to be more than a few thousand and that, like the other humpback dolphins, they are threatened by coastal development, ship strikes, and accidental and intentional killing by people. .
Once you know how many unexercised stock options exist, you have to identify them as either statutory stock options (aka incentive stock options, ISOs), options from Employee Stock Purchase Plans (ESPPs, aka 423 plans for the tax code provision giving them qualified status) or nonqualified stock options, also known as non-statutory options (NSOs).
Since we don't know how many Dylann Roof's exist in America, and since mass shootings and other forms of random violence take place all the time in the U.S., Wednesday's murderous rampage represents a threat that can't be assessed in a traditional manner.
