At the same time, an evening newscast cited unidentified security sources as saying it would be impossible to tighten security around the prime minister since it was already supposed to be air-tight.
In addition, the disclosure of identifiers, such as specific village names where the data were collected, was also impossible due to security considerations.
This is further complicated by logistical constraints, which may make the collection of data impossible due to security or other restrictions [ 10].
As in practice it is impossible to achieve total security against these attacks for all the mathematically possible adversaries, a weaker security definition is necessary, taking into account only the computationally possible adversaries.
In a vast and free nation such as ours, it is impossible to guarantee perfect security.
Just to the south, the border runs so close to a road alongside the Israeli settlement of Manara that it would be impossible to build a security fence.
Many policies foisted by the current central government, which lead to inefficient public expenditure, fail to create assets and fail to target subsidies, and distort markets, will be impossible to reverse – food security, land acquisition, "mandatory" corporate social responsibility programs.
(In Egypt, where I live now, I hear cautious incrementalists say it's impossible to dismantle the security services overnight; crime actually went down in Georgia after the mass firing).
The number of teachers who carry guns in the nation's 99,000 public schools is impossible to calculate, school security experts, education officials and people on both sides of the gun debate agree.
Given the huge number of cameras, it is impossible to hire enough security guards to constantly monitor all camera feeds.
"It has become impossible to protect the security of our operations and our staff in Hungary from arbitrary government interference".
