An amazing read by David Rosen at Vanity Fair detailing yet another abysmal Bush Administration adventure and it's disastrous results. Here's the lead-in.
After failing to anticipate Hamas’s victory over Fatah in the 2006 Palestinian election, the White House cooked up yet another scandalously covert and self-defeating Middle East debacle: part Iran-contra, part Bay of Pigs. With confidential documents, corroborated by outraged former and current U.S. officials, David Rose reveals how President Bush, Condoleezza Rice, and Deputy National-Security Adviser Elliott Abrams backed an armed force under Fatah strongman Muhammad Dahlan, touching off a bloody civil war in Gaza and leaving Hamas stronger than ever.

US and CIA helped Hamas, as they did with Al-Quaeda in Afganistan during 80's. The reason is maintaining hot spot in the region, from which US could gain political points in eyes of Middle East countries while attacking other nations in that region.
So, what's new about it? This is old news.