Complex sentence: Although widely popular domestically, critics--in particular from the U.S. press--argued that many were not fair trials, with Castro responding by proclaiming that "revolutionary justice is not based on legal precepts, but on moral conviction".
Split into simpler sentences: Although widely popular domestically, critics--in particular the U.S. press--argued that many were not fair trials. Castro responded that "revolutionary justice is not based on legal precepts, but on moral conviction".