I’m sure there will be more from Egypt’s Fattah al-Sisi in the next few days, he is not a person prone to knee-jerk emotional responses to crisis. Research into al-Sisi, and following him for several years, shows he thinks carefully, calls for counsel, takes immediate advice and then makes a strong decision and sticks with it.
That said, as you read this I must point out something in this Reuters example which highlights the bias inherent in Western media that slips past unless you have followed the nuances and details of any event/story. Check out this statement:

[…] “The beheadings could stiffen Sisi’s resolve in dealing with security threats from militants thriving in neighboring Libya’s chaos who want to topple his U.S.-backed government“.

“U.S. backed government“, who does Reuters think they’re kidding?
The Obama administration openly disparages al-Sisi, talks negatively about him, spoke angrily against the removal of Muslim Brotherhood’s Morsi and didn’t even call Sisi to congratulate him on his overwhelming election victory. But Reuters says “U.S. backed”, because NOW it fits the narrative a strong Obama needs, unreal. I digress.

(Reuters) – Islamic State released a video on Sunday that appeared to show the beheadings of 21 Egyptian Christians in Libya and President Abdel Fattah al-Sisi warned that his country would respond to the deaths as it saw fit.
Speaking on national television hours after the release of the video, Sisi said Cairo would choose the “necessary means and timing to avenge the criminal killings”.
Egypt’s state news agency MENA quoted the spokesman for the Coptic Church as confirming that 21 Egyptian Christians believed to be held by Islamic State were dead.
The beheadings could stiffen Sisi’s resolve in dealing with security threats from militants thriving in neighboring Libya’s chaos who want to topple his U.S.-backed government.
[…] Egypt, the most populous Arab state, has not taken part directly in the U.S.-led air strikes against Islamic State targets in Iraq and Syria, focusing instead on the increasingly complex insurgency within its own borders.
Militants based in Libya have made contact with Sinai Province, a group operating from Egypt’s Sinai Peninsula that has changed its name from Ansar Beyt al-Maqdis and pledged allegiance to Islamic State.
The group has killed hundreds of Egyptian soldiers and police since the army toppled Islamist president Mohamed Mursi in 2013 after mass protests against his rule.
With Libya caught in a chaotic power struggle between two rival factions operating their own governments, Western officials worry that Islamist militants are taking advantage of the turmoil to strengthen their presence.
A number of Islamist militant groups have been active since the fall of Muammar Gaddafi in 2011 left Libya without a strong central government. A few have declared ties to the radical Islamic State and claimed high-profile attacks over recent weeks in what appears to be an intensifying campaign.

{*snip* notice the wording, as if Muammar Gaddafi just fell down or something – removing the liability of consequence from Clinton/Obama….. /SD}

Fears that the crisis in neighboring Libya could spill across the border have prompted Egypt to upgrade its military hardware. French President Francois Hollande has said Egypt will order 24 Rafale fighter jets, a naval frigate and related military equipment in a deal to be signed in Cairo on Monday worth more than 5 billion euros ($5.7 billion). (read more)