A gust of wind was all it took to bring global container flows and oil shipments to a halt. The errant container ship that blocked the Suez canal this week has cut off a route that handles more than 10% of international trade.

Part of this situation was simply unfortunate: Egypt has expanded parts of the canal to enable two-way traffic and accommodate larger carriers. The Ever Given ship went off course and got stuck in part of the waterway that’s still narrow.

But it’s also a reminder that even an advanced civilisation like ours has points of acute vulnerability. In the strategy and military realm, such bottlenecks are also known as “choke points”. And we often don’t pay enough attention to them until something goes wrong.

Systems designers strive to avoid these single points of failure, so that transport, energy and communication networks are able to withstand attacks or unexpected calamities. (The twin crashes involving a Boeing 737 Max are one example of a flawed design — a single sensor gave faulty readings to the plane’s automated flight system.) Technological advances and globalisation were also supposed to make us less susceptible to this type of problem. The Internet, for example, was conceived as a decentralised system that’s pretty difficult to break, as was bitcoin.

Pinch points

But global infrastructure, defined broadly, still has a surprising number of pinch points. These can be difficult to remedy, as creating backup options is expensive and counteracts economies of scale. In some cases, the problem is even getting worse: Industries are becoming more concentrated due to corporate takeovers. Furthermore, big chunks of our lives are now mediated by a just handful of technology companies. Nokia, Ericsson and Huawei control about 60% of the telecommunications equipment market, for example.

The upshot is that governments are now more cognisant of the political and economic power held by those who control choke points. It’s one reason why the US has big concerns about Huawei’s involvement in building critical 5G networks.

But first, back to canals. The Panama Canal (which connects the Atlantic and Pacific oceans), the Suez Canal (linking the Mediterranean and the Red Sea) and the Strait of Hormuz (at the mouth of the Persian Gulf) are places where container ships and oil tankers are forced to navigate narrow passages. The alternative is a long detour or more expensive air freight.

Port of Suez, Egypt is featured in this image photographed by an Expedition 16 crew member on the International Space Station. The Port of Suez is located in Egypt along the northern coastline of the Gulf of Suez. The port and city are the southern terminus of the Suez Canal that transits through Egypt and debouches into the Mediterranean Sea near Port Said. Image: Nasa

For decades, these waterways have been recognised as areas of huge strategic importance and as being susceptible to military or terror attacks. Iran has frequently used the Strait of Hormuz to pressure foreign powers. Various backup routes have been mooted but most haven’t materialised. Nicaragua pitched a canal linking the Pacific and Caribbean Sea, for example, but the rumoured cost of US$50-billion has been prohibitive.

One can perhaps excuse vulnerabilities arising from the natural world, but we should be less accepting of those in the economic sphere over which we have more control.

Consider energy. In seeking to rid itself of one pinch point — the fact that Europe gets much of its gas via pipelines that traverse Ukraine — Germany has created another: the twin Nord Stream gas pipelines that connect Russia and Germany under the Baltic Sea. The US worries these will weaken Eastern Europe and increase Germany’s dependence on Russia.

In the realm of finance, trillions of dollars of financial instruments are tied to the London interbank offered rate, which a small circle of banks found to be shockingly easy to manipulate until they were exposed in the years following the 2008 financial crisis. Libor is now being replaced. Similarly, Europe has long relied on the Swift payments system and the US dollar, but that dependence came into question in 2018 as it disagreed with the US over Iran sanctions.

In technology, people have warned for years that the US needs a backup for the Global Positioning System, the satellite-based navigation infrastructure that underpins much of the modern digital economy. The system can be spoofed or otherwise disrupted. It has yet to develop one.

Semiconductors

Semiconductors are where the clearest pinch points are emerging. A global computer chip shortage during Covid has forced car manufacturers to tear up production plans. The hiatus is temporary, but this belies the real problem: Very few companies are able to produce the most advanced chips, due to the technical challenges and vast cost of constructing foundries. The most important of these, Taiwan’s TSMC, is based on an island that’s under constant threat of invasion by Beijing.

It’s not the only example of this industry’s dangerous concentration: ASML of the Netherlands has a monopoly on the machines needed to fabricate the best chips. Now China’s inability to buy the most cutting-edge gear from ASML is holding back its own semiconductor ambitions.

None of these choke-point problems are easy to resolve. Not only are there geopolitical ambitions at work here, but there are also usually trade-offs between building greater resilience and efficiency. Reinforcing supply chains is expensive.

But because redundancy offers protection and is therefore a public good, there’s an argument that governments should play a role in providing it. Antitrust policy, for example, can be used to challenge monopolies and foster more competition.