Bell’s theorem is arguably the most important result of the foundations of quantum theory. From a modern perspective, we can describe Bell’s theorem as the mismatch between the predictions of quantum theory and classical theories under some specific causal assumption. In the last decade, the generalization of Bell’s theorem to causal networks has sparked new applications and new kinds of nonclassical behavior and, consequently, the field of causal inference has gained much attention from the physics community.  In this talk, our first goal is to present the simplest causal network where quantum non-classicality can emerge with an entanglement-swapping experiment. Furthermore, we also ask if the violation of a Bell inequality is the only signature of the incompatibility between quantum correlations and a classical theory of causality. To this end, we explore new tasks in the causal inference literature that have never been considered in the context of quantum information, namely the data fusion problem where we piece together observational and interventional data of a given experiment.