(4) Given the different approaches to data protection in third countries, the adequacy assessment should be carried out, and any decision based on Article 25(6) of Directive 95/46/EC should be made and enforced in a way that does not arbitrarily or unjustifiably discriminate against or between third countries where like conditions prevail, nor constitute a disguised barrier to trade, regard being had to the European Union’s present international commitments.