Tunisia’s president abruptly replaced the interior and social affairs ministers Saturday night in a surprise cabinet reshuffle following a wave of arrests that has raised fresh fears for the health of the young democracy. President Kais Saied named Khaled Nouri minister of interior, according to a statement from his office, replacing Kamel Feki, who had been considered close to the head of state. Technocrat Kamel Madouri will be the new social affairs minister, replacing Malek Zahi, who was also seen as having the president’s ear. The reshuffle also created the new post of secretary of state o…