Farmers returned to Brussels with their tractors on Tuesday, launching fireworks, lighting fires, spraying hay and dumping manure in protest of EU regulations and falling profits. One person was arrested for throwing Molotov cocktails at security forces during the protests. Two police officers were injured and transferred to hospital, the Belgian police said in a statement. Police set up roadblocks and deployed a water cannon to contain the demonstrations and with horns blaring, tractors blockaded the streets of the European Union’s headquarters in the Belgian capital. Tear gas was also deploy…