Summary
Two Egyptian police officers were killed Monday while trying to defuse makeshift bombs planted near Cairo's presidential palace by Islamist militants close to the anniversary of the army's overthrow of an elected Islamist president.
The then-army chief, Abdel-Fattah al-Sisi, was elected president in May.
Eight people were hurt in a series of explosions last week on Cairo's metro, the first attacks in the capital since Sisi was sworn in as president.
The security dragnet has since been expanded to include secular and liberal activists, including many who played leading roles in the 2011 popular revolt that ousted autocratic President Hosni Mubarak.
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