Congressional Democrats...reached a deal with the White House yesterday, clearing the way for approval of trade pacts with Peru and Panama... The key to the agreement, said those involved, was the Bush administration's reluctant assent to Democratic demands for...enforceable labor provisions [to] be written into the texts of trade deals to protect the rights of workers abroad to organize unions and bargain collectively, while banning forced labor, child labor and workplace discrimination... [A trade agreement with] Colombia is...tougher, because about 400 labor union members have been murdered there in recent years, labor groups contend... Under the terms of the compromise, trading partners would be allowed to disregard drug patents in the event of a public health crisis, a worry for pharmaceutical companies.