Three bombs exploded on the streets of Cairo today. One very serious one, downtown near the police headquarters - and of the very worst kind, a suicide attack, according to this Canadian News Report.
This BBC report says that an al-Qaeda-inspired militant group has said it carried out the attack on the police
At this point, little is known. We heard nothing and activity continues around this area with the usual reduced traffic typical of a Friday.
This, more recent report from this afternoon, suggests that the first large bomb was not a suicide attack. As Donald Rumsfeld said, "first reports are almost always wrong." Note the general reaction toward the Muslim Brotherhood from citizens quoted in all the reports.