House lawmakers sharply criticized the head of the Department of Energy’s green energy loan program for not releasing documents requested by a committee looking into companies that have received taxpayer dollars. “It is disconcerting that the executive director of a major government program is unwilling to commit — to actually commit — to providing all the documents that an investigation committee of the Congress has requested,” California Republican Rep. Dana Rohrabacher .. told Mark McCall, the head of the DOE’s loan office, in a hearing Thursday, “and that the answer being given is using weasel words ... House committee members...