sentences:  Residente then describes his considerable anger against what had happened to Ojeda, and how that represents a humiliation to Puerto Ricans (""(A) nuestra bandera la han llena'o de mea'o"", meaning "Our flag has been pissed upon") It also shows the political concerns of Calle 13, as evidenced by their allusions to 9/11, the U.S. government's involvement in the Ponce massacre.The song suggests putting an end to U.S. military and federal-police intervention in Puerto Rico by involving the entire Commonwealth of Puerto Rico, but particularly public housing dwellers, those residing in ""caseríos"" who normally battle each other on urban skirmishes related with crime, but who also happen to have federal law enforcement officials as a common enemy.The duo was criticized by some who believed the lyrics promoted violence against U.S. authorities (such as ""hoy me disfrazo de machetero / y esta noche voy a ahorcar a diez marineros"" (""Today I'll dress up as a machetero / and tonight I'll hang ten sailors"") Also, "Y por eso protesto (...) Y hasta por un septiembre 11."