U.S. President Joe Biden and Chinese President Xi Jinping on Thursday warned each other over what they view as destabilizing acts regarding Taiwan, as a possible visit to the island by the U.S. House of Representatives speaker has increased bilateral tensions.In what was their fifth call since Biden took office in January last year, the two leaders also discussed the value of meeting face to face and agreed to have their teams follow up to find "a mutually agreeable time to do so," a senior U.S. administration official said.Speaking for more than two hours, the leaders looked into areas whe…READ FULL ARTICLE