Riddle Me This

Under the recently-started sequestration, why didn't we have the money to allow the DHS to continue detaining several thousand illegal aliens at their detention centers (setting aside the question of why they couldn't find other places to save money) forcing their release, yet we still can pledge $450M to Egypt?  And do we still intend to grant $307B for research, development and education to expand Internet use in Africa, including a private-public partnership headquartered in Kenya?

The respective sources for these stories are CNS News, BBC News and The Big Bad Bank.