"Because quite often the arguments that a defense deal is essential on national security grounds then that becomes justification for shielding it from public scrutiny."

VOA: standard.2009.10.01

And often it's because of the barriers in the labor market.

VOA: standard.2009.11.12

Because COPD is an ailment that blocks airflow in the lungs, it is critical that COPD patients often focus on breathing, exercise regularly and learn relaxation techniques, especially when they are short of breath.

VOA: standard.2010.06.21