A more substantive problem is that surveillance methods, including both case-crossover and Poisson time series, can only estimate the short-term effect of air pollution, thus underestimating the combined acute and chronic effects that impact population health [ 22].
Although it's unclear if the outlook among congressional leaders has changed, a top aide to House GOP leadership foreshadowed an uphill battle for any substantive changes to the scope of surveillance.
He should move beyond unpersuasive and vague pledges to balance security against privacy, to substantive guidelines that limit the overreaching of N.S.A. surveillance programs abroad and at home.
"National security surveillance programs must not be used to circumvent important substantive and procedural protections belonging to journalists and their source," their letter said.
However, as the calls from civil liberties groups, legislators and the average citizen grow louder, the E.U. and the U.S. should act, and they should do so jointly if the global nature of surveillance and privacy rights are to be addressed in a substantive way.
BIOSENSE is a national surveillance system that they say has not been implemented in any substantive way.
On some days, the differences at 6 30 p.m. are substantive; on a Thursday in December, CBS led with Iran's capture of a United States drone surveillance aircraft, NBC opened with an investigation into the mishandling of soldiers' remains, and ABC with the mysterious shooting of a police officer at Virginia Tech.
In Europe, the European Physical Activity Surveillance System (EUPASS) has been implemented to contribute to the establishment of an appropriate, cost-effective and feasible Community health monitoring system to be achieved by developing and testing a surveillance system, using physical activity, being a major indicator of public health, as its substantive focus and starting point [ 27].
There are substantive issues.
