Sudan's president Omar al-Bashir. (File: AFP)br>br>Khartoum - Sudanese President Omar al-Bashir vowed on Monday to brutally crush anti-regime protests, warning the authorities will crack down on demonstrators as they did in 2013 when dozens were killed during clashes.Bashir's warning came as opposition activists issued a new call to hold a two-day nationwide strike next week a" />