Tuesday, November 28, 2017

DELIBERATING WITHOUT KNOWING

Two interesting news are worth mentioning this week.  The first one concerns the press conference held by Vytenis Andriukaitis, EU Commissioner in charge of Health and Food Safety, on the State of Health in the EU. The second one concerns the publication of a report on risk perception of genome editing among German consumers, conducted by the German Federal Institute for Risk Assessment (Bundesinstitut für Risikobewertung).  Although their plain diversity, there is a common lesson to be learned from this two news.
In his press conference, Mr Andriukaitis  was expected to present the yearly report on the State of Health the EU.  Although a chapter of the report was devoted to vaccines and vaccination, this topic was only one among others and probably not the most momentous. Yet, in the course of the press conference, vaccines, vaccination, and objections to vaccination fuelled most questions. Answering one of them, Mr Andriukaitis   stated  “I would like to draw attention to the fact that all these movements, which use different arguments, do not understand what they are doing. It would be a shame if the families belonging to this movement were to bury their children, as happened this year in the Member States where children have died of measles. I would like to invite those who are against the vaccines to visit families, to visit the tombs of the children of those families, and to think what they are doing. I would like to invite all these anti-aging movements to visit the European cemeteries of the nineteenth century, of the eighteenth century, beginning of the twentieth century: they will find many tombs of small children, because there were no vaccines”. Mr Andriukaitis’ answer was not only laudable for strength and determination, but it was almost perfect in communication terms, although commentators and scientists would have probably preferred more sober and reasoned arguments.  On the one hand, Mr Andriukaitis described vaccination as a fundamental right of the child -which is a vital move in this debate -and on the other hand, he did not rely on rational arguments, rather he evoked a powerful narrativethrough the symbol of “European cemeteries” (the same potent image used by pope John Paul II during his 1979 visit to Auschwitz).
On Nov 24 - the day after Vytenis Andriukaitis’ press conference -  the German Federal Institute for Risk Assessment (BfR) presented the results of a new study on risk perception of genome editing. The study was conducted in Germany on a sample made of 39 focus group interviews. Research was quite limited both in number of participants and in geographical scope, yet its great interest relied in being one if the first studies on public perception of CRISPR/Cas9 methodology. Results were summarised by BfR President Professor Dr Andreas Hensel, who said “Although the respondents were hardly aware of genome editing and knew little about these technologies, the majority of them reject the use of these methods in the food sector". In early 2017, the High Level Group of Scientific Advisors of the Scientific Advice Mechanism of the European Commission, suggested to consider CRISPR technologies as “new breeding techniques (NBT)”, keeping them distinct, also in regulatory terms, from established techniques of genetic modification (ETGM). Now, the BfR study warns against this attempt to “downgrade” CRISPR technologies and to subtract them from regulations ruling GMO products. Wisely enough, the BfR study takes seriously people’s concerns, and suggests policy makers to do the same, avoiding any attempt to circumvent existing regulations on GMO products, using people ignorance as an alibi.  
These two stories show – although from different perspectives – that education and public awareness, while still important, are not as relevant as they were in the past. People are not simply “uninformed” or “uneducated”, rather they do not think it is any more necessary to know to deliberate.  Most people think to be legitimate to have an opinion on problems that they deliberately ignore. Knowledge of facts is no longer supposed to be relevant in public decision making, this is the dramatic paradigm shift of our epoch, like it or not.

Monday, November 20, 2017

Blockchain technology for preventing foodborne diseases

So much has happened in the field of emerging epidemics and infectious diseases over these three months, including a resurgence of concern about the health and societal impact of tuberculosis  and  pneumonic plague in Africa.  Focusing, however, on recent times, the past week was marked by interest in blockchain technology for preventing foodborne diseases. A blockchain is a distributed database that maintains a growing list of records reinforced against tampering and revision. It consists in a chain of data blocks, which can be used to prove ownership of a record at a certain time, by including a one-way hash of any transaction affecting the chain. In 2008, Satoshi Nakamoto – the legendary designer of the Bitcoin algorithm -  described blockchain as “a system for electronic transactions without relying on trust”.  Indeed, blockchain is growing in popularity also thanks to the cultural climate of distrust towards institutions, authorities, and experts.
On Nov 6, the Walmart Food Safety Collaboration Center (WFSCC) awarded the project “OriginTrail” with the Walmart 2017 Food Safety Innovation Award. OriginTrail is a project initiated by a Slovenian-Serbian team in 2014, with the twofold goal of preventing foodborne diseases and food counterfeiting. After three pilots in Europe, in 2016 the project has started a vast trial in China, involving 1,200 farms. According to Walmart’s vice-president, Frank Yiannas, “by tracking how and where the food we sell is produced, blockchain provides new levels of transparency and accountability – responsible systems result in safer food”.  Always in China, Walmart and IBM are also developing “blockchain-powered traceability solutions which will enable customers to scan quick-response codes on food products with their smart phones, and determine the origins of the products”. Furthermore, in August 2017,IBM has announced a blockchain collaboration with Dole, Driscoll’s, Golden State Foods, Kroger, McCormick and Company, McLane Company, Nestlé, Tyson Foods, Unilever, with the aim to increase food security.   Finally, OwlTing, a Taiwanese e-commerce platform, has just launched its own blockchain app for tracing food. OwlTing’s promises to provide customers with relevant information about the authenticity, quality, and safety of food products, including information of vaccines and medications received by animals.  
Blockchain technology could undoubtedly  enhance product traceability,  because “anyone with access to the blockchain could see exactly what hands the product has been through”.  Yet, here is where the problem is. Blockchain technology used by cryptocurrencies such as Bitcoin is an open system, it works through and thanks its participants, being a class of them responsible for securing the entries and providing a mechanism for self-rewarding. Active participation is thus incentivized. This system could hardly work with food supply blockchains, not the least because access to supply chains cannot be free and it would be difficult to enforce a direct global rewarding mechanism. As a consequence, food supply blockchains can work only if they are backed by an owner or a group of owners. They are “permissioned”, which means that they are closed and controlled; they are restricted to authorized actors, which are the sole allowed to participate in growing the chain as well as approving the records.
The most relevant aspect of permissioned blockchainsis that they are trustworthy only as long as their owners are trustworthy. In other words, food supply blockchains, far from creating trustless systems, are relocating trust from health authorities to blockchain owners. The final result will be that consumers - who hardly trust now authorities, health institutions, and experts - are going soon to be asked to trust Walmart, IBM, and Nestlé. There is some lesson in this.