Adly Mansour, Egypt’s new interim president, swore the oath of office in front of Egypt’s Supreme Constitutional Court on Thursday morning, formalizing a whirlwind insurrection, reports the Wall Street Journal. Egyptian prosecutors escalated what appeared to be a widespread roundup of top Muslim Brotherhood members on Thursday, according to The New York Times, acting hours after the military deposed Mohamed Morsi, the Islamist who became the country’s first democratically elected president just a year ago. Meanwhile, USA Today reports the Israelis, who share a border with Egypt in the south, are watching the events unfolding there closely.