The NYT op-ed 'Pakistan, the Saudis’ Indispensable Nuclear Partner' by:
Pervez Hoodbhoy is a professor of physics and mathematics. He teaches at Forman Christian College in Lahore and Quaid-e-Azam University in Islamabad.
Link:http://www.nytimes.com/2015/04/22/op...ani-rift.html?

Near the start he writes:
The recent deterioration of Pakistan’s ties with its Arab benefactors, even if it turns out to be temporary, is unprecedented.
He ends with:
Except that now Saudi Arabia, which is too rich to be ignored yet too weak to defend itself, has reason to fear that Pakistan, its indispensable nuclear partner, might no longer simply follow its diktats.