Article Photos: Chavez opponents to challenge Venezuela ruling 5/7

An opponent of Venezuelaâs President Hugo Chavez holds up a sign that reads in Spanish, "Maduro is an usurper," during an outdoor gathering in Caracas, Venezuela, Saturday, Jan. 12, 2013. Venezuelan opposition politicians say they're preparing to present a case before a regional human rights court to challenge a Supreme Court decision that permits the indefinite postponement of President Hugo Chavez's inauguration. (AP Photo/Ariana Cubillos)