Sentence examples for necessary and required from inspiring English sources

"The intelligence activities undertaken by the United States government are lawful, necessary and required to protect Americans from terrorist attacks," said Dana Perino, the deputy White House press secretary, who added that appropriate members of Congress have been briefed on intelligence activities.

Since only a thin film of Primer P is necessary and required, the primer was applied and wiped to control the thickness as thin as possible.

The use of force is necessary and required.

Ethics education to medical students is a necessary and required commitment to accomplishing an all-round training of the doctor whose decisions are both technical and moral.

Heath et al. 2008 [ 95] conclude from their results that NOV is necessary and required for normal muscle maintenance and use, showing that the over-expression of NOV leads to increased cell proliferation and promotes the survival of cells expressing myogenin.

Thus, angiogenesis is a necessary and required step for transition from a small harmless cluster of cells to a large tumour and is also required for the spread of a tumour, invasion and/or metastasis.

To understand the molecular basis of TIR TIR domain interactions, structural and biochemical studies of TRAM TIR domain are necessary, and require a functional soluble protein.

The sealed type is designed to be maintenance free and under normal conditions will not release gas, whereas an open battery is designed to release gases when necessary, and requires topping up and, in some cases, a complete electrolyte change.

"It is also reassuring to note that the court has affirmed that to deny a remedy to a victim of a wrong should always be regarded as exceptional, and that any exception must be necessary and requires strict and cogent justification, which were not found to be present in this case".

Meticulous translation is necessary, and requires a rigorous translation protocol with backward and forward translations [28].

Initiatives should include bringing cases in the W.T.O., imposing tariffs when necessary, and requiring rigorous reviews of China's planned investments in American ports, markets, natural resources and transportation industry.