EU chief negotiator Ignacio Garcia Bercero (R) and US chief negotiator Dan Mullaney (L) pose on March 10,2014 at the EU Headquarters in Brussels. A fourth round of EU-US trade talks will kick off in Brussels to day. The talks will help pave the way for a future trade and investment deal, known as the Transatlantic Trade and Investment Partnership, or TTIP. Negotiators will discuss different aspects of the agreement, including trade in services, public procurement, rules of origin, technical barriers to trade, agriculture, and customs and trade facilitation. AFP PHOTO /GEORGES GOBET (Photo credit should read GEORGES GOBET/AFP/Getty Images)