Three weeks into an escalating war in the Middle East, Iran threatened on Friday to expand its retaliatory attacks to include recreational and tourist sites worldwide, as the US announced it was sending more warships and Marines to the region. Hours later, President Donald Trump said on social media that his administration in fact was considering "winding down" military operations in the region. His post came after another climb in oil plunged the US stock market. The mixed messages came as the war has shown no signs of abating. Iran launched more attacks on Israel and energy sites in neighbouring Gulf Arab states, and the region marked one of the holiest days on the Muslim calendar. Iranians were also celebrating the Persian New Year, known as Nowruz, a normally festive holiday, as Israeli airstrikes landed in Tehran. With little information coming out of Iran, it was not clear how much damage its arms, nuclear or energy facilities have sustained in the punishing US and Israeli ..