Republican voters in the state of Iowa are preparing to take part in the caucuses that mark the first test of the US presidential election year. Also in the programme: Bernardo Arevalo has been sworn in as Guatemala's new president after many hours of delay caused by wrangling among opposition MPs in Congress; and two Iranian women journalists have been charged for not wearing the hijab, a day after they were released from prison on bail.(Picture: Former U.S. President and Republican presidential candidate Donald Trump speaks as he campaigns in Indianola, Iowa, U.S. Credit: Reuters)