Thomas Brown, chief executive officer of Second Curve Capital LLC and a Bloomberg contributing editor, talks about Citigroup Inc.'s second-quarter earnings reported today and outlook.   The third-biggest U.S. bank said net income rose 24 percent to $3.34 billion, or $1.09 a share. Citigroup estimated it has at least $22 billion in loans, trading assets and other "exposures" to Greece, Italy, Portugal, Spain and Ireland. Brown speaks with Betty Liu and Dominic Chu on Bloomberg Television’s "In the Loop."