Did a little digging and found this site.
[url]www.periscope1.com/demo/weapons/gcv/tanks/w0003593.html[/url]
It mentions the Egyptian tank program (and various other Middle Eastern countries). No mention of export restrictions of DU armor. Heck, I think that I read that they now build them over there.
As to the question of vulnerability to the Hellfire missile:
"Of the over 1,950 M1's and M1A1 tanks in the Kuwaiti Theater of Operations, only four suffered catastrophic damage and four were damaged but repairable, the Army report stated. Later analysis revealed that of the four that caught fire, three were hit erroneously by U.S. AGM-114 Hellfire missiles. No crewmen were injured because the bustle doors and blow off panels worked as designed to vent the explosions upward."
Looks like we developed and distributed a pretty formidable weapon that Israel may now have to defeat.