ALBAWABA- Qatar and Saudi Arabia have signed a landmark agreement to build a high-speed electric rail line linking Riyadh and Doha, one of the Gulf’s largest joint infrastructure projects to date. The deal, according to Qatar’s Al-Raya , marks a major step toward deeper economic integration and a unified regional transport network. The 785-kilometer line will feature trains running at 300 km/h, cutting travel time between the two capitals to ...