In December 2009, campaigners in the UK called on two leading high street retailers to stop selling clothes made with cotton which may have been picked by children. Anti-Slavery International and the Environmental Justice Foundation (EJF) accused H&M and Zara of using cotton suppliers in Bangladesh. It is also suspected that many of their raw materials originates from Uzbekistan, where children aged 10 are forced to work in the fields. The activists were calling to ban the use of Uzbek cotton and implement a "track and trace" systems to guarantee an ethical responsible source of the material.
What are activists trying to get implemented?
"track and trace" systems

The Roman Empire reached its greatest territorial extent during the 2nd century AD; the following two centuries witnessed the slow decline of Roman control over its outlying territories. Economic issues, including inflation, and external pressure on the frontiers combined to make the 3rd century politically unstable, with emperors coming to the throne only to be rapidly replaced by new usurpers. Military expenses increased steadily during the 3rd century, mainly in response to the war with Sassanid Persia, which revived in the middle of the 3rd century. The army doubled in size, and cavalry and smaller units replaced the legion as the main tactical unit. The need for revenue led to increased taxes and a decline in numbers of the curial, or landowning, class, and decreasing numbers of them willing to shoulder the burdens of holding office in their native towns. More bureaucrats were needed in the central administration to deal with the needs of the army, which led to complaints from civilians that there were more tax-collectors in the empire than tax-payers.
In what century did the revival of Persia occur under the Sassanids?
3rd century

Despite this glowing message by the Emperor, Chan writes that a year later in 1446, the Ming court cut off all relations with the Karmapa hierarchs. Until then, the court was unaware that Deshin Shekpa had died in 1415. The Ming court had believed that the representatives of the Karma Kagyu who continued to visit the Ming capital were sent by the Karmapa.
Who did the Ming court think the representatives were sent by?
the Karmapa