An old familiar one, actually, but rejuvenated and modernised.
http://ipsnews.net/news.asp?idnews=107720
In a nutshell, Israel has apparently failed to make timely payments for Egypt's natural gas and, per the contract, Egypt has stopped shipping it to Israel. Israel has responded by making threats and general bullying.
Since Egypt's natural gas was supplying 40% of Israel's energy, Israel now has a real reason to be paranoid, and Egypt's evil refusal to sell their precious natural resources to foreign countries will now replace Iran's fantasy nuclear bomb threat in the headlines.*
* unless Egypt caves in and starts selling/giving natural gas to Israel again.