He attributed much of this summer's problems to high demand, unusual weather and a covert job action by pilots at United Airlines.
The problem with covert U.S. raids in the Pakistani tribal territories today is not that they are unjustified — the Taliban and Al Qaeda are vicious adversaries, and they pose what the national-security lawyers call a "clear and present danger" to the United States and to Pakistan.
The chapter largely focuses on problems with a covert C.I.A. effort to disrupt alleged Iranian nuclear weapons research.
In an empirical study exploring this hypothesis in two large samples of children aged 9 15, Buehler et al. (1998) found an association between child-rated covert parental conflict and internalizing problems in both samples.
As a secondary test of CD problems, aggressive and covert CD symptoms were entered into a multivariate regression model together, first unadjusted and then after adjusting for all covariates.
However, APG method cannot be used directly in our model since the original APG method is proposed for solving unconstrained minimization problem, so there is a need to covert our model into an unconstrained problem.
This covert approach is a major problem because the agreement is more than just a trade deal.
Facebook CEO Mark Zuckerberg has been resistant to the notion that his company, social media, or the web in general are undermining democracy ("a pretty crazy idea"), even after dozens of his own staff formed a covert taskforce to address the problem post-election.
"The problem with these big covert action programs," a senior official once told Smith, "is that they become the policy of the United States".
Mr. Lawrence said the company had made "a covert disclosure" of the wholesale inventory problem in the annual report it filed with the Securities and Exchange Commission last week.
