Here's the Eric Margolis column on Egypt from last Monday (a week ago). It focuses on some interesting stuff, such as...
Massive yearly shipments of grain and munitions to Egypt by the USA, all paid for by American foreign aid. These are the benefits Egypt reaps by following a foreign policy stance that pleases Washington (meaning, among other things, not opposing anything Israel does). Without this annual aid Egypt would soon face food riots and its military would soon be crippled by lack of supplies and spare parts for their equipment.
In short, they either must get food and military aid from the USA...or they must get it from someone else, such as Russia or China?