, i'm elaine quijano. the pentagon is investigating the apparent murders of three u.s. soldier this weekend in eastern afghanistan. they have not been identified. the afghan army says one of its soldiers turned his gun on the americans before he was shot dead. the taliban claimed this was the gunman and that he was one of their own, an army infiltrator. the attack comes as america's longest war is at another cross roads. the pentagon wants to add thousands of troops to the 8,000 plus already in afghanistan. they're helping in the fight against the taliban, al-qaeda and isis. but some in congress want to cut off funding for the 16 year war, saying the u.s. has sacrificed enough blood and treasure. here's tony dokoupil. >> reporter: when an afghan soldier opened fire saturday killing three americans who were supposed to be his allies vice president mike pence offered solace at a speech in milwaukee. >> su fies it to say, when and our thoughts and prayers are with the families of these american heroes. >> rep

. >> quijano: america's longest war. three u.s. soldiers murdered this weekend in afghanistan. nhe debate intensifies in washington over how to end this 16 year war. >> mr. chairman, i believe we're in a stalemate. >> quijano: also tonight, president trump's wedding surprise and sunday morning tweet storm. >> gay pride events turn into resist trump marches. >> we are not invisible. >> quijano: and a puerto rico votes whether to become the 51st state, we check in with puerto ricans on the island of manhattan. >> we deserve all the rights of citizens. this is the "cbs weekend news."

simon quijano-evans still with us. bank is the only institution functioning properly in south africa. it is doing the heavy lifting. when is that going to stop? are you going to get resolution? when are we going to get resolution? is it going to be by the end of the year? simon: it will stop when we get a change of the leadership. essentially, as you say, the country and the government have been relying on the central bank, pushing reforms forward, doing the right thing, which has not been the case for the rest of the government, and as you know, south africa has the highest income inequality, youth the wholent mix in world. this has not changed. we finally need change to south africa, otherwise you will see further ratings downgrades. matt: let us go from one emerging market to the other. saudi arabia's deputy crown prince has replaced his cousin as the crown prince, next in line for the throne. the shock announcement obviously puts him next in line to the head of the world's biggest oil exporter in saudi arabia. bloo

i'm elaine quijano. the pentagon is investigating the apparent murders of three u.s. the afghan army says one of its troops turned his gun on the americans before he was shot dead. the taliban claims this was the gunman and that he was one of their own, an army infiltrator. the attack comes as america's longest war is at another crossroads. the pentagon wants to add thousands of troops to the 8,000-plus already in afghanistan. they're helping in the fight against the taliban, al qaeda and isis. but some in congress want to cut off funding for the 16-year war, saying the u.s. has sacrificed enough blood and treasure. here's tony dokoupil. >> reporter: when an afghan soldier opened fire saturday, killing three americans who were supposed to be his allies. vice president mike pence offered solace at a speech in milwaukee. >> suffice it to say, when heros fall, americans grieve. with the families of these american heroes. >> reporter: after nearly 16 years, more than 2200 casualties and an estimated cost topping $800 billion, the u.s. is deadlocked in its fight with the t

i'm elaine quijano.he eyes of washington and the nation turn to capitol hill today for the most anticipated congressional testimony in years. fired fbi director james comey will go before the senate intelligence committee. he'll tell what he knows about president trump's effort to influence the investigation of then national security adviser michael flynn. the committee has already released comey's opening statement and it landed like a political bombshell. nancy cordes begins our coverage. >> reporter: comey's seven-page opening statement describes his conversations with the president in detail. seven days after the inauguration comey says, the president invited me to dinner. it turned out t of of us. instincts told me that the one on one setting meant that the dinner was at least in part an effort to have me ask for my job and create some sort of patronage relationship. sure enough, comey says, the president said, i need loyalty. i expect loyalty. i didn't move. speak or change my facial expression in