by Saleem Shahid in Dawn, November 25th, 2023QUETTA: Trade between Pakistan and Afghanistan via the Chaman border crossing remained suspended for the fourth consecutive day on Friday, as the participants of a sit-in being held against the strict visa regime continued to block the highway leading to Kandahar. Thousands of traders, workers of different political parties and members of civil society have been staging the sit-in on the Quetta-Chaman highway for over a month against…