By David A. Patten

Violent anti-government riots in Egypt and a grassfire of unrest torching across the sands of the Middle East fueled fears of $200-a-barrel oil and an instability some say could spread to oil-rich Saudi Arabia, and beyond.

Police Friday clashed with tens of thousands of protesters in Cairo and Alexandria. Shortly after 11 a.m. ET, as a government-ordered curfew took effect, CNN carried pictures of dozens of military trucks and armored vehicles loading police and leaving downtown Cairo as Egyptian army regulars moved in.

“We have yet to see if they will take the place of the hated Egyptian police who have cracked down so violently,” CNN correspondent Ben Wedeman reported from Iraq before his communication was disrupted. The government had responded to the “day of rage” by pulling the plug on telephone and Internet links, so protesters could not communicate.

The wave of unrest in the Middle East that began with the Jasmine Revolution is now having repercussions around the globe.

After the recent fall of governments in Tunisia and Lebanon, angry marches in Yemen, and the brutal crackdown in Egypt that has left seven dead and hundreds wounded, analysts worry that the governments of Algeria and Jordan could be next to see disturbances. Read more…