In its short history, MPT has come under question from various directions.

FORBES: Is Modern Portfolio Theory Out-of-Date?

The gasoline-demand data are among several market-moving reports that have come under question in recent years, including crude-oil inventories and natural-gas outputs.

WSJ: Questions Arise on Gasoline Demand Data

Assets held by the ECB would soon feel more like liabilities and as they were written down, does the sanctity of the ECB come under question?

FORBES: Co-ordination By Central Banks Just A Quick Fix

The veracity of the incident has come under question.

NEWYORKER: Election, Monitored

Separately, Celebrex's stomach benefit has also come under question, as Pfizer's own big trial was unable to prove that its Celebrex avoided the most serious complication of the older drugs, bleeding ulcers.

FORBES: Novartis Study Could Affect Pfizer, Merck

However, he will know that he will now come under pressure to answer the question - if not Heathrow, where?

BBC: No Heathrow U-turn, but what next?

Assistant Secretary of Defense Charles Abell said the question of whether military ballots were postmarked did not come under the charter of the Department of Defense inspector general's audit.

CNN: Pentagon report fails to address key question in voting controversy

"I have come to believe that this is a question of fairness and of equal protection under the law, and that a civil union is not equal to civil marriage, " Baldacci, a Democrat, said in a statement released as he signed the bill.

CNN: Lawmakers approve same-sex marriage in N.H., Maine

One place where this question of how to reward those whose only job is to create financial wealth for others has come under particular scrutiny is in the management of university endowments.

FORBES: Should Anyone Earn a Billion A Year?