not taking him would also be a pretty big liability, considering how that would look to any other assets of the BND.If John Aleshire is not already in Federal custody he should be finding a way to beat feet out of the United States but his problem is that he is now very radioactive and no doubt that many countries will not take him in.
Aleshire is now a liability to the Germans and to keep him from talking they are going to feed him to the crabs.
The British are on the sideline with their tea and crumpets watching with detached amusement and wanting nothing to do with this and content to see the United States and Germany go at each other.
The only possible ones that may help Aleshire are the French and Russians but that is going to come at a very high price to him and there are no guarantees that they won't dispose of him after they wring every last drop of information from him.
Aleshire best bet is to make a deal with the Feds tell them everything and hope to get a release date and new identities for his family.