By Luc Cohen and Sarah N. Lynch NEW YORK (Reuters) -U.S. prosecutors have found evidence that Russian oligarchs are trying to evade sanctions put in place to pressure Moscow to stop its invasion of Ukraine, the head of a new Justice Department task force said on Friday. Andrew Adams, a veteran prosecutor tapped to lead the “KleptoCapture” task force established last month, told Reuters in an interview that in some cases, even oligarchs who have not yet had sanctions imposed on them are trying to move assets ahead of potential future sanctions. But even as they try to hide yachts, planes or oth…