The phrase "a single collateral" is correct and usable in written English.
It can be used in contexts related to finance, law, or agreements where a single item is being used as security for a loan or obligation.
Example: "The bank required a single collateral to secure the loan, which was the property deed."
Alternatives: "one collateral" or "a sole collateral".
When Brennan said, as he did in 2011 — clearly referring to the drone campaign — that "there hasn't been a single collateral death," he was most certainly wrong.
Indeed, current CIA director John Brennan publicly claimed in 2011 that there had not been a "single collateral death" from US drone strikes in the previous year.
John O. Brennan, President Obama's counterterrorism adviser, said in June that for a year "there hasn't been a single collateral death" as a result of drone attacks.
In June 2011, Mr. Brennan declared that "there hasn't been a single collateral death because of the exceptional proficiency, precision of the capabilities we've been able to develop".
Clearly referring to drones, he said, "Nearly for the past year, there hasn't been a single collateral death, because of the exceptional proficiency, precision of the capabilities that we've been able to develop".
During a speech in 2011, the keeper of the kill list said there had not been "a single collateral death" from US drone strikes because of their "exceptional proficiency [and] precision".
In 9 cases (12.9 %), a single proximal collateral branch was observed, which ramified near its origin (Fig. 2b).
One reason is that while someone operating in the real world, say a homeowner, may only once be able to re-mortgage her asset or property, unregulated shadow bankers can use a single unit of collateral to re-leverage a number of times.
Debt, with a single stock as collateral, can be deadly.
"As the globe embraces technology, consumers are gaining access to products and options never before available, instead of relying on a single provider or collateral or co-signers to fund their future," says Frisch.
As previously reported [1], all neuromuscular junctions in 2 4 month old YFP-H mice were fully innervated by a single motor axon collateral (Figure 2A).
