Original sentence: Andrew Brown subsequently conceded that when he had "used the phrase 'an agent' to describe someone who turned out to be I.MacPherson notes, however, that writer Max Holland, an expert on the Kennedy assassination, persisted in repeating allegations about Stone accepting money from the Soviet Union, even while acknowledging the unreliability of their source (i
Edited sentence: Brown subsequently conceded that when he had "used the phrase 'an agent' to describe someone who turned out to be I.MacPherson notes, however, that American journalist Max Holland persisted in repeating allegations about Stone accepting money from the Soviet Union, even while acknowledging the unreliability of their source (i