Hong Kong court quashes Tiananmen activists' conviction / Cathay Pacific apologises for inflight Family Guy episode with Tiananmen Square scene / China has changed a lot in the past 75 years -- Tiananmen Square reflects that change / Voters react to Gov Tim Walz dodging Tiananmen Square question: 'I'm a knucklehead at times' / Walz's false claims on Tiananmen Square protests: What to know / 'I'm a knucklehead at times': Walz forced to admit 'discrepancies' over Tiananmen Square anecdote / 'I'm a knucklehead': Tim Walz says he 'misspoke' about Tiananmen Square visit / Walz forced to correct record on whether he was in China for the Tiananmen Square protests / Tim Walz says he misspoke when he claimed he was in China during Tiananmen Square massacre