Egypt's Youm7 newspaper quotes unnamed senior Egyptian officials as saying that the new head of the Muslim Brotherhood, Mahmoud Ezzat, had fled to Gaza several weeks ago and is now overseeing a new mini-army of Gaza militants and1500 Muslim Brotherhood soldiers and smuggled from Egypt into Gaza through tunnels.
These troops are being trained with Hamas' Al Qassam Brigades, according to the rumors, and they are in two areas of Khan Younis. It is being funded by the Muslim Brotherhood and is receiving weapons from Turkey, smuggled to Gaza through Cyprus, including anti-tank missiles.
The rumor gets a little more fantastic when it says that some of the weapons are stolen from both the Egyptian and Israeli armies.
(What is true is that Mahmoud Ezzat has not been seen for several weeks, since he was appointed in his new role. The idea that he is directing operations from Gaza is a bit far-fetched, though.)
The commenters are taking this seriously, though, with one suggesting that it is time for the Egyptian army to hold its own "Cast Lead" against Gaza, damn the civilian casualties.
Even though the story seems filled with holes, the fact that it even gets such prominent play in Egypt (and even gets leaked by Egyptian officials to the media) says volumes about how Hamas and Gaza itself is regarded as an enemy.