According to a recent poll, Brazilians appear to approve of measures to photograph and fingerprint US tourists entering the country, a move that sparked a diplomatic tiff between the nations.  Of 2,000 people surveyed, 74.4 percent said they agreed with the immigration procedures, which were enacted at the start of the year in a tit-for-tat retaliation for similar security checks by the United States.  The measures sparked a diplomatic row between the two countries and have been widely criticized by US travellers, including an American Airlines pilot and a retired US banker who showed their displeasure by giving their middle finger while being photographed.  Although some Brazilians worried the measures would deter US visitors at the height of the tourist season, the system has revealed resentment among Brazilians over what they consider to be costly and humiliating procedures to get a US visa or enter the United States.  Visitors from other countries need not worry, however, as only 3.2 percent of those polled thought the procedures should be extended to other foreigners entering Brazil.