His reputation has taken a deep plunge since he shook the world in 2010 by releasing, in cooperation with The New York Times and several other news organizations, masses of secret government documents, including battlefield reports from Iraq and Afghanistan.
And as Mr Mehta's analysis reveals, their share of global pharmaceutical sales, and of the market capitalisation of the drugs industry, have taken a deep plunge (see chart).
This weekend was an excellent time to take a deep plunge into the spicy and somewhat self-congratulatory nostalgia of it all, swap stories, pull out well-thumbed paperbacks, get all confused about which Eatonville you meant when you said Eatonville.
Film music as an art took a deep plunge when Dolby stereo hit.
But the highest bracket takes a deep plunge, from the current planned level of 39.6percentt down to 28percentt.
It was four years ago that Alter came to the realization that he was already two-thirds of the way through the Old Testament, and, after taking a deep breath, plunged into dealing with the final one-third.
The incoming anchors were eager to bandy the topic for a long moment, sportily, as if taking a deep breath of fresh air before plunging into a waste container of sex-crime headlines at the top of the hour.
Few — after all — would take the risk of a deep plunge into the Thames itself; so it proves with Ackroyd's history.
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They hop on a Vespa, take a deep breath and plunge into the city's famously chaotic traffic.
