Tensions Escalate , After Biden Calls Putin a 'Killer'.<br />U.S. President Joe Biden referred to <br />Russian President Vladimir Putin as <br />a "killer" during a recent television interview.<br />Putin responded to the remark.<br />It takes one to know one, Vladimir Putin, via 'The Guardian'.<br />Putin also indicated what <br />he would say to Biden when the <br />two leaders meet face to face.<br />I wish you health [...] without any irony or joke, Vladimir Putin, via 'The Guardian'.<br />Putin also invited Biden to talk virtually <br />either on Friday or Monday.<br />The exchange between the two leaders is <br />a stark departure from the approach <br />of the Trump administration.<br />Analysts point out that though Moscow officials <br />have decried Biden's statements, they have not <br />attempted to dispute his accusations against Putin
