By Adam Jourdan and Daniel Ramos SANTA CRUZ/LA PAZ, Bolivia (Reuters) – Protesters in Bolivia’s farming region of Santa Cruz are blocking highways out of the province, threatening to snarl the domestic transport of grains and food, as anger simmers following the arrest of local governor Luis Camacho. The region, a stronghold of the conservative opposition to socialist President Luis Arce, is in its sixth day of protests that have seen thousands of people take to the streets and nights of clashes with weaponized fireworks and cars burned. On Tuesday hundreds of women marched to the city police …