Overview: 2010/05/20 Headlines: BP Oil Spill Enters Loop Current as Leak Estimate Rises; Dissident Dems Help Stall Financial Reform Bill; Dodd Abandons Effort to Weaken Derivatives Measure; Anti-Reform Derivatives Lobbyists Outnumber Pro-Reformers 11 to 1; Foreclosures, Missed Payments at Record Levels; Top Scientific Body Endorses Carbon Tax; Mothers of Jailed US Hikers Arrive in Iran; WikiLeaks Founder Has Passport Revoked in Australia; Activist for Displaced Slain in Colombia; Penn Urges Haiti Aid; Haitian Protesters Call for Préval's Resignation; Obama Hosts Calderón, Criticizes Arizona Law; Second-Grader Cites Mother's Plight in Questioning First Lady on Deportation; GOP Senate Nominee Paul Opposes Enforcing Civil Rights Act at Private Businesses