Via AFP:
Vice President Joe Biden vowed the US would work with Ukraine and other allies to prevent countries like Russia from using energy as a "political weapon."
In a telephone call with Ukrainian Prime Minister Arseniy Yatsenyuk, Biden said aid from the United States and other countries would help Ukraine "meet its most pressing needs," the White House said in a statement.
On Thursday, President Barack Obama signed a bill providing Kiev with $1 billion in loan guarantees, amid the worst East-West crisis since the end of the Cold War.
The International Monetary Fund last month announced a $...