BBC News Japan published an article titled 'フィリバスターとは？ 韓国国会で最長記録' (What is a filibuster? South Korea's National Assembly sets a record) on March 3, 2016.
Notes on verification
Multiple independent sources (YouTube metadata, Hatena bookmark aggregator) corroborate the exact title and BBC Japan as publisher, and the underlying event (record-length filibuster in South Korea's National Assembly) is well documented. However, the original BBC article page itself could not be directly accessed to verify date/byline firsthand. [cascade flags: wikipedia_dropped_other_sources_exist | tier=bronze indep_score=0.3 clusters=2 claim_tier=everyday]
Sources
- フィリバスターとは？ 韓国国会で最長記録 - BBCニュース (seed:politics_and_current_events)
- https://www.youtube.com/watch?v=1-xnx05zWug (corroboration)
- https://d.hatena.ne.jp/keyword/%E3%83%95%E3%82%A3%E3%83%AA%E3%83%90%E3%82%B9%E3%82%BF%E3%83%BC (corroboration)