Reason Morning Links: CIA Working in Libya, Top Buffet Aide Resigns, Congressional Leaders Reach Budget Deal

• CIA is working with Libyan rebels.
• Gabriel Giffords supporters discussing possible run for the Senate.
• Top Warren Buffet aide resigns after questionable stock deal.
• Trials for HIV vaccine to begin next year.
• Congressional leaders reach tentative budget agreement.
• New from Reason.tv: "Nanny of the Month (March 2011): Drug Warrior-in-Chief Barack Obama!"