[Iran Refuses to Open Strait in Exchange for 'Empty Promises'; Escalation May Lead to Closure of Mandeb Strait] Deep Tide TechFlow reports, on April 7, citing senior Iranian sources via Reuters, that Pakistan continues to relay messages, but the U.S. has not changed its tone. Currently, there are no negotiations with the U.S., as it hopes Iran will yield under pressure. When we see the U.S. demonstrate flexibility, we will also show flexibility. What the U.S. wants is the reopening of the Hormuz Strait, but Iran will not exchange the opening of the strait for 'empty promises.' If the U.S. attacks Iran's power plants, the entire region, including Saudi Arabia, will be plunged into darkness. Qatar conveyed Iran's stance on striking power plants to the U.S. on Monday. If the situation spirals out of control, Iran's allies may also close the Mandeb Strait. (Jin10)